APA (7th ed.) Citation

Blaug, M. (1968). Economic theory in retrospect (Rev. ed.). Irwin.

Chicago Style (17th ed.) Citation

Blaug, Mark. Economic Theory in Retrospect. Rev. ed. Homewood, Ill: Irwin, 1968.

MLA (9th ed.) Citation

Blaug, Mark. Economic Theory in Retrospect. Rev. ed. Irwin, 1968.