Cita APA (7a ed.)

Breton, P. P. L., Le Breton, P. P., & Henning, D. A. (1961). Planning theory. Prentice-Hall.

Cita Chicago Style (17a ed.)

Breton, Preston P Le, Preston P. Le Breton, y Dale Ansgar Henning. Planning Theory. Englewood Cliffs, N. J: Prentice-Hall, 1961.

Cita MLA (9a ed.)

Breton, Preston P Le, et al. Planning Theory. Prentice-Hall, 1961.