APA (7th ed.) Citation

Hart, W. L. R. (1980). Mathematics of investment (5th ed.). National Book Store.

Chicago Style (17th ed.) Citation

Hart, William Le Roy. Mathematics of Investment. 5th ed. Manila: National Book Store, 1980.

MLA (9th ed.) Citation

Hart, William Le Roy. Mathematics of Investment. 5th ed. National Book Store, 1980.