Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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