Cita APA

Beck, G. G. 1. ,., & Dobson, C. (2011). Watersheds: A practical handbook for healthy water. Ontario, Canadá: Firefly books.

Citación estilo Chicago

Beck, Gregor Gilpin,‎ 1964- ,, y Clive Dobson. Watersheds: A Practical Handbook for Healthy Water. Ontario, Canadá: Firefly books, 2011.

Cita MLA

Beck, Gregor Gilpin,‎ 1964- ,, y Clive Dobson. Watersheds: A Practical Handbook for Healthy Water. Ontario, Canadá: Firefly books, 2011.