Gaya APA

Wenk, M, S., service), S, (. (). The European Union's Eco-Management and Audit Scheme (EMAS) (1st ed. 2005.). : .

Gaya MLA

Wenk, Michael, S.., service), SpringerLink, (Online. "The European Union's Eco-Management and Audit Scheme (EMAS)". 1st ed. 2005. : , . E Book.