APA (7th ed.) Citation

Roy, E. P. (1969). Cooperatives: Today and tomorrow ([2d ed.].). Interstate.

Chicago Style (17th ed.) Citation

Roy, Ewell Paul. Cooperatives: Today and Tomorrow. [2d ed.]. Danville, Ill: Interstate, 1969.

MLA (9th ed.) Citation

Roy, Ewell Paul. Cooperatives: Today and Tomorrow. [2d ed.]. Interstate, 1969.