APA (7th ed.) Zitazioa

Harrop, D., & Nixon, J. A. (1999). Environmental assessment in practice. Routledge.

Chicago Style (17th ed.) Zitazioa

Harrop, D.Owen, eta J Ashley Nixon. Environmental Assessment in Practice. London: Routledge, 1999.

MLA (9th ed.) Zitazioa

Harrop, D.Owen, eta J Ashley Nixon. Environmental Assessment in Practice. Routledge, 1999.