APA (7th ed.) Citation

Langfeld, H. S., & Allport, F. H. (1916). An elementary laboratory course in psychology. Houghton Mifflin Company.

Chicago Style (17th ed.) Citation

Langfeld, Herbert Sidney, and Floyd Henry Allport. An Elementary Laboratory Course in Psychology. Boston, New York: Houghton Mifflin Company, 1916.

MLA (9th ed.) Citation

Langfeld, Herbert Sidney, and Floyd Henry Allport. An Elementary Laboratory Course in Psychology. Houghton Mifflin Company, 1916.