APA ציטוט

Jewkes, J., Sawers, D., & Stillerman, R. (1969). The sources of invention (2nd ed.). Macmillan.

Chicago Edition Citation

Jewkes, John, David Sawers, and Richard Stillerman. The Sources of Invention. 2nd ed. London: Macmillan, 1969.

ציטוט MLA

Jewkes, John, et al. The Sources of Invention. 2nd ed. Macmillan, 1969.