Cita APA (7a ed.)

Heilbroner, R. L., Singer, A., & Bauer, N. W. (1978). The development of American economic life. Harcourt Brace Jovanovich.

Cita Chicago Style (17a ed.)

Heilbroner, Robert L., Aaron Singer, y Nancy W. Bauer. The Development of American Economic Life. Orlando [u.a.]: Harcourt Brace Jovanovich, 1978.

Cita MLA (9a ed.)

Heilbroner, Robert L., et al. The Development of American Economic Life. Harcourt Brace Jovanovich, 1978.