APA (7th ed.) Citation

Gray, A. (1931). The development of economic doctrine: An introductory survey. Longmans, Green.

Chicago Style (17th ed.) Citation

Gray, Alexander. The Development of Economic Doctrine: An Introductory Survey. London, New York [etc.]: Longmans, Green, 1931.

MLA (9th ed.) Citation

Gray, Alexander. The Development of Economic Doctrine: An Introductory Survey. Longmans, Green, 1931.