APA

Bugental J. F. T., . (1967). Challenges of humanistic psychology. New York: McGraw-Hill.

Chicago

Bugental James F T, . 1967. Challenges of humanistic psychology. New York: McGraw-Hill.

Harvard

Bugental J. F. T., . (1967). Challenges of humanistic psychology. New York: McGraw-Hill.

MLA

Bugental James F T, . Challenges of humanistic psychology. New York: McGraw-Hill. 1967.