Cita APA (7th ed.)

Sutherland, W. J. (1997). Ecological census techniques: A handbook. Univ. Pr.

Cita Chicago (17th ed.)

Sutherland, William J. Ecological Census Techniques: A Handbook. Cambridge: Univ. Pr, 1997.

Cita MLA (9th ed.)

Sutherland, William J. Ecological Census Techniques: A Handbook. Univ. Pr, 1997.