1890-1976 1930- 1930-2015 20thcentury agatha agricultureandstate austria biography criticismandinterpretationallingham criticismandinterpretationchristie criticismandinterpretationrendell detectiveandmysterystories eduard english englishfiction greatbritain hartmann history historyandcriticism lalbahadur margery politicians politicsandgovernment ruth shastri womenandliterature womenauthors