APA (7th ed.) Citation

Williamson, E. G., & Hahn, M. E. (1940). Introduction to high school counseling. McGraw-Hill book company, inc.

Chicago Style (17th ed.) Citation

Williamson, Edmund Griffith, and Milton Edwin Hahn. Introduction to High School Counseling. New York and London: McGraw-Hill book company, inc, 1940.

MLA (9th ed.) Citation

Williamson, Edmund Griffith, and Milton Edwin Hahn. Introduction to High School Counseling. McGraw-Hill book company, inc, 1940.