APA (7th ed.) Citation

Sahakian, W. S. (1975). History and systems of psychology. Halsted Pr.

Chicago Style (17th ed.) Citation

Sahakian, William S. History and Systems of Psychology. New York: Halsted Pr, 1975.

MLA (9th ed.) Citation

Sahakian, William S. History and Systems of Psychology. Halsted Pr, 1975.

Warning: These citations may not always be 100% accurate.