APA (7th ed.) Citation

Gide, C. (1948). A history of economic doctrines (2nd.). George G. Harrap.

Chicago Style (17th ed.) Citation

Gide, C. A History of Economic Doctrines. 2nd. London: George G. Harrap, 1948.

MLA (9th ed.) Citation

Gide, C. A History of Economic Doctrines. 2nd. George G. Harrap, 1948.