Cita APA (7th ed.)

Spellerberg, I. F. (1991). Monitoring ecological change. Cambridge University Press.

Cita Chicago (17th ed.)

Spellerberg, Ian F. Monitoring Ecological Change. Cambridge: Cambridge University Press, 1991.

Cita MLA (9th ed.)

Spellerberg, Ian F. Monitoring Ecological Change. Cambridge University Press, 1991.