Cita APA

Wetlands International, Delany, S., & Scott, D. A. (2002). Waterbird population estimates (third edition.). United Kingdom: Wetlands International.

Citación estilo Chicago

Wetlands International, Simon,compilador Delany, y Derek A. Scott. Waterbird Population Estimates. third edition. United Kingdom: Wetlands International, 2002.

Cita MLA

Wetlands International, Simon,compilador Delany, y Derek A. Scott. Waterbird Population Estimates. third edition. United Kingdom: Wetlands International, 2002.