> Verlagsreihe
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Research methods and organization studies Alan Bryman
London [u.a.]: Routledge, 2005
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In the field an introduction to field research Robert G. Burgess
London [u.a.]: Routledge, 1995
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Field research a sourcebook and field manual ed. by Robert G. Burgess
London [u.a.]: Routledge, 1994