Cita APA

Andrews,William A, & McEwan,Sandra J. (1987). Investigating Aquatic Ecosystems. Prentice-Hall.

Citación estilo Chicago

Andrews,William A, y McEwan,Sandra J. Investigating Aquatic Ecosystems. Ontario: Prentice-Hall, 1987.

Cita MLA

Andrews,William A, y McEwan,Sandra J. Investigating Aquatic Ecosystems. Prentice-Hall, 1987.