1965- accidents clericaloccupations clerks control decoration design designsandplans desks diseases diseasesandhygiene effectoftechnologicalinnovationson ergonomics healthandhygiene healthaspects history homesites humanengineering humanmechanics landuse location matthiaspetrus occupational occupationaldiseases occupationalhealth officebuildings officedecoration officelayout officemanagement physicalexertion pictorialworks planning posture prevention psychological realproperty schaller sittingposition storelocationplanning stress stressmanagement valuation vaticancity videodisplayterminals wa400s824o1983 we103d6842002 whitecollarworkers workenvironment