APA-viite (7. p.)

Schnell, G. A. (1983). The Study of population: Elements, pattern processes. Merrill.

Chicago-viite (17. p.)

Schnell, George A. The Study of Population: Elements, Pattern Processes. London, Charles E.: Merrill, 1983.

MLA-viite (9. p.)

Schnell, George A. The Study of Population: Elements, Pattern Processes. Merrill, 1983.