Cita APA (7a ed.)

Heinrich, B. (2020). White feathers: The nesting lives of tree swallows. Houghton Mifflin Harcourt.

Cita Chicago Style (17a ed.)

Heinrich, Bernd. White Feathers: The Nesting Lives of Tree Swallows. Boston: Houghton Mifflin Harcourt, 2020.

Cita MLA (8a ed.)

Heinrich, Bernd. White Feathers: The Nesting Lives of Tree Swallows. Houghton Mifflin Harcourt, 2020.

Precaución: Estas citas no son 100% exactas.