Cita APA (7th ed.)

Ehrlich, R., & Ehrlich, G. (1993). The cosmological milkshake: A semi-serious look at the size of things (1a. ed.). Rutgers University Press.

Cita Chicago (17th ed.)

Ehrlich, Robert, i Gary Ehrlich. The Cosmological Milkshake: A Semi-serious Look at the Size of Things. 1a. ed. New Brunswick: Rutgers University Press, 1993.

Cita MLA (9th ed.)

Ehrlich, Robert, i Gary Ehrlich. The Cosmological Milkshake: A Semi-serious Look at the Size of Things. 1a. ed. Rutgers University Press, 1993.