APA aipamena

Brooker, R. (1986). Environmental economy. E. & F. N. Spon.

Chicago Style aipamena

Brooker, Richard. Environmental Economy. London: E. & F. N. Spon, 1986.

MLA aipamena

Brooker, Richard. Environmental Economy. E. & F. N. Spon, 1986.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.