Cita APA (7a ed.)

Robbins, L. C. (1945). An essay on the nature and significance of economic science (2nd ed., rev. and extended.). Macmillan and Co.

Cita Chicago Style (17a ed.)

Robbins, Lionel Charles. An Essay on the Nature and Significance of Economic Science. 2nd ed., rev. and extended. London: Macmillan and Co, 1945.

Cita MLA (9a ed.)

Robbins, Lionel Charles. An Essay on the Nature and Significance of Economic Science. 2nd ed., rev. and extended. Macmillan and Co, 1945.