Cita APA

Gruenberg, B. C., & Unzicker, S. P. j. a. (1938). Science in our lives. World book company.

Citación estilo Chicago

Gruenberg, Benjamin Charles, and Samuel P. joint author Unzicker. Science in Our Lives. Yonkers-on-Hundson, N.Y: World book company, 1938.

Cita MLA

Gruenberg, Benjamin Charles, and Samuel P. joint author Unzicker. Science in Our Lives. World book company, 1938.