Cita APA (7a ed.)

Zelinsky, W. A prologue to population geography.

Cita Chicago Style (17a ed.)

Zelinsky, Wilbur. A Prologue to Population Geography.

Cita MLA (9a ed.)

Zelinsky, Wilbur. A Prologue to Population Geography.

Precaución: Estas citas no son 100% exactas.