051 1819-1880 18thcentury 1939-1945 1961-1970 1971-1980 1981-1990 19thcentury 20thcentury 21stcentury abstracts acquisitionofscientificpublications acquisitionofserialpublications africanamericans amateurs'manuals american americanliterature americanperiodicals americans architecture archives armedforces art arts austria authorsandpublishers authorship autobiography avant-garde(aesthetics) basicreader bibliography biography biology britishnewspapers britishperiodicals broadcasting business canadianliterature canadianperiodicals cartooning cartoonsandcaricatures cartoonsandcomics cartoonsastopic catalogs celebrities chineseperiodicals communication communicationstudies computer computerbooks:general computercommunicationnetworks computernetwerken computernetworks computers computerscience computertechnology congresses correspondence crime criticism deliveryofhealthcare directories disciplines economicpolicy economics education electronicmailmessages engineering english englishlanguage englishliterature englishpoetry etc european exhibitions fashion fashioneditors fiction finland france gaypresspublications general george germanliterature germany greatbritain handbooks histoireetcritique history historyandcriticism humangenetics humor hypertextandwebsitedesign imitations indexes indiansofnorthamerica informationstorageandretrievalsystems informationtechnology inliterature intellectuallife internet internet(computernetwork) internet(redinformática) interviews irish issnrecord italy journalism judaism juvenileliterature koninklijkinstituutvoortaal- languagearts latinamericanperiodicals law lawlibraries libraries lifesciences literarycriticism literature literaturepublishing magazinedesign magazines man-womanrelationships manuals marketing massmedia mathematics mediaindustries medicalstatistics medicine mexicanperiodicals miscellaneous modern motionpictures music musicalcriticism newspaperpublishing newspapers newyork newyork(state) nonfiction nursing onlinesocialnetworks parodies periodicalsastopic philosophers physiology pn4836 politicsandgovernment politicsandliterature popularculture popularmusic press psychology publicopinion publishersandpublishing publishing publishingindustries périodiques redesinformáticas religiousliterature research rockmusic scholarlyperiodicals science science/mathematics sciencefiction sciencepublishing sciencereferencelibrary(britishlibrary) scottish serialpublications socialaspects socialsciences societies solidstatephysics sources statistics strips studyandteaching studyandteaching(higher) technique technology textbooksforforeignspeakers unioncatalogs unionlists unitarianuniversalistchurches unitarianuniversalists unitedstates vitalstatistics websitedesign welsh william women women'speriodicals women'srights womeneditors womenjournalists worldwar worldwideweb youngwomen