Cita APA

Jewkes, J., Sawers, D., & Stillerman, R. (1959). The sources of invention. St.Martin's.

Citación estilo Chicago

Jewkes, John., David Sawers, and Richard Stillerman. The Sources of Invention. New York: St.Martin's, 1959.

Cita MLA

Jewkes, John., David Sawers, and Richard Stillerman. The Sources of Invention. New York: St.Martin's, 1959.