APA-viite

Ercman, S. (1977). European environmental law: Legal and economic appraisal. Bubenberg-Verlag.

Chicago-tyylinen lähdeviittaus

Ercman, S. European Environmental Law: Legal and Economic Appraisal. Bern: Bubenberg-Verlag, 1977.

MLA-viite

Ercman, S. European Environmental Law: Legal and Economic Appraisal. Bubenberg-Verlag, 1977.