APA (7th ed.) Citation

Wallin, J. E. W. (1920). Clinical and abnormal psychology: A textbook for educators, psychologists and mental hygiene workers. Harrap.

Chicago Style (17th ed.) Citation

Wallin, J. E. Wallace. Clinical and Abnormal Psychology: A Textbook for Educators, Psychologists and Mental Hygiene Workers. London: Harrap, 1920.

MLA (8th ed.) Citation

Wallin, J. E. Wallace. Clinical and Abnormal Psychology: A Textbook for Educators, Psychologists and Mental Hygiene Workers. Harrap, 1920.