Cita APA (7a ed.)

Weeks, J. R. (2021). Population: An introduction to concepts and issues (Thirteenth edition.). Cengage Learning, Inc.

Cita Chicago Style (17a ed.)

Weeks, John Robert. Population: An Introduction to Concepts and Issues. Thirteenth edition. Boston, MA, USA: Cengage Learning, Inc, 2021.

Cita MLA (9a ed.)

Weeks, John Robert. Population: An Introduction to Concepts and Issues. Thirteenth edition. Cengage Learning, Inc, 2021.