APA (7e ed.) Bronvermelding

Opschoor, J. B., & Vos, B. H. (1989). Economic instruments for environmental protection. Organisation for Economic Co-operation and Development ; OECD Publications and Information Centre, distributor].

Chicago (17e ed.) Bronvermelding

Opschoor, Johannes B., en B. Hans Vos. Economic Instruments for Environmental Protection. Paris : [Washington, D.C.: Organisation for Economic Co-operation and Development ; OECD Publications and Information Centre, distributor], 1989.

MLA (9e ed.) Bronvermelding

Opschoor, Johannes B., en B. Hans Vos. Economic Instruments for Environmental Protection. Organisation for Economic Co-operation and Development ; OECD Publications and Information Centre, distributor], 1989.