APA citiranje

Cowles, A. (1939). Common-stock indexes (2nd ed.). Principia Press.

Chicago Style (17th ed.) Citation

Cowles, Alfred. Common-stock Indexes. 2nd ed. Bloomington, Indiana: Principia Press, 1939.

MLA citiranje

Cowles, Alfred. Common-stock Indexes. 2nd ed. Principia Press, 1939.