APA (7th ed.) Citation

Marshall, A. (1946). Principles of economics: An introductory volume. macmillan and Co.

Chicago Style (17th ed.) Citation

Marshall, Alfred. Principles of Economics: An Introductory Volume. macmillan and Co, 1946.

MLA (8th ed.) Citation

Marshall, Alfred. Principles of Economics: An Introductory Volume. macmillan and Co, 1946.

Warning: These citations may not always be 100% accurate.