APA-viite (7. p.)
ebrary, Inc, & Conrad, J. (1998). Environmental management in European companies: Success stories and evaluation. Gordon abd Breach Science Publishers.
Chicago-viite (17. p.)
ebrary, Inc, ja Jobst Conrad. Environmental Management in European Companies: Success Stories and Evaluation. Amsterdam, The Netherlands: Gordon abd Breach Science Publishers, 1998.
MLA-viite (9. p.)
ebrary, Inc, ja Jobst Conrad. Environmental Management in European Companies: Success Stories and Evaluation. Gordon abd Breach Science Publishers, 1998.
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