APA-viite (7. p.)

Frankel, L. B., & Bureau, P. R. (1970). This crowded world: An introduction to the study of population. Columbia Books.

Chicago-viite (17. p.)

Frankel, Lilian B., ja Population Reference Bureau. This Crowded World: An Introduction to the Study of Population. Washington D.C: Columbia Books, 1970.

MLA-viite (9. p.)

Frankel, Lilian B., ja Population Reference Bureau. This Crowded World: An Introduction to the Study of Population. Columbia Books, 1970.