APA (7th ed.) Citation

Gemmill, P. F. (1949). Fundamentals of economics: A textbook for introductory college courses in economic principles (5th ed.). Harper & Brothers.

Chicago Style (17th ed.) Citation

Gemmill, Paul F. Fundamentals of Economics: A Textbook for Introductory College Courses in Economic Principles. 5th ed. New York: Harper & Brothers, 1949.

MLA (9th ed.) Citation

Gemmill, Paul F. Fundamentals of Economics: A Textbook for Introductory College Courses in Economic Principles. 5th ed. Harper & Brothers, 1949.