Cita APA (7th ed.)

VAUGHAN, G. D. (1974). An introduction to applied economics. Heinemann.

Cita Chicago (17th ed.)

VAUGHAN, G. Douglas. An Introduction to Applied Economics. London: Heinemann, 1974.

Cita MLA (9th ed.)

VAUGHAN, G. Douglas. An Introduction to Applied Economics. Heinemann, 1974.