Cita APA (7th ed.)

Weeks, J. R. (2005). Population: An introduction to concepts and issues (9th ed.). Thomson/Wadsworth.

Cita Chicago (17th ed.)

Weeks, John Robert. Population: An Introduction to Concepts and Issues. 9th ed. Belmont, Calif: Thomson/Wadsworth, 2005.

Cita MLA (9th ed.)

Weeks, John Robert. Population: An Introduction to Concepts and Issues. 9th ed. Thomson/Wadsworth, 2005.