APA (7th ed.) Citation

Kapp, K. W., & Kapp, L. L. (1954). A graphic approach to economics: Selected principles and problems (Rev. and enl. ed.). Holt.

Chicago Style (17th ed.) Citation

Kapp, K. William, and Lore L. Kapp. A Graphic Approach to Economics: Selected Principles and Problems. Rev. and enl. ed. New York: Holt, 1954.

MLA (9th ed.) Citation

Kapp, K. William, and Lore L. Kapp. A Graphic Approach to Economics: Selected Principles and Problems. Rev. and enl. ed. Holt, 1954.