APA (7th ed.) Citation

Jones, I. G. (1949). Essentials of economics. Macdonald.

Chicago Style (17th ed.) Citation

Jones, Idris Glyn. Essentials of Economics. London: Macdonald, 1949.

MLA (9th ed.) Citation

Jones, Idris Glyn. Essentials of Economics. Macdonald, 1949.