Welford, R. (1999). Corporate environmental management: Systems and strategies. Universities Press.
Čikaški stil citiranjaWelford, Richard. Corporate Environmental Management: Systems and Strategies. Hyderabad: Universities Press, 1999.
MLA način citiranjaWelford, Richard. Corporate Environmental Management: Systems and Strategies. Universities Press, 1999.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.