Cita APA (7a ed.)

Knapp, J. G. (1967). Great American cooperators: Biographical sketches of 101 major pioneers in cooperative development. American Institute of Cooperation.

Cita Chicago Style (17a ed.)

Knapp, Joseph Grant. Great American Cooperators: Biographical Sketches of 101 Major Pioneers in Cooperative Development. Washington: American Institute of Cooperation, 1967.

Cita MLA (9a ed.)

Knapp, Joseph Grant. Great American Cooperators: Biographical Sketches of 101 Major Pioneers in Cooperative Development. American Institute of Cooperation, 1967.