Cita APA

Keller, J. G. n. 1., & Keller, J. G. n. 1. (1950). Careers that change your world: Christopher guides for jobs that make the future. [Garden City, New York]: Doubleday.

Citación estilo Chicago

Keller, James Gregory n. 1900, y James Gregory n. 1900 Keller. Careers That Change Your World: Christopher Guides for Jobs That Make the Future. [Garden City, New York]: Doubleday, 1950.

Cita MLA

Keller, James Gregory n. 1900, y James Gregory n. 1900 Keller. Careers That Change Your World: Christopher Guides for Jobs That Make the Future. [Garden City, New York]: Doubleday, 1950.