APA (7th ed.) Citation

Powell, J. W. (1960). Research in adult group learning in the liberal arts. [publisher not identified].

Chicago Style (17th ed.) Citation

Powell, John Walker. Research in Adult Group Learning in the Liberal Arts. [White Plains? N.Y.]: [publisher not identified], 1960.

MLA (9th ed.) Citation

Powell, John Walker. Research in Adult Group Learning in the Liberal Arts. [publisher not identified], 1960.