APA (7th ed.) Citation

Douglass, H. R. (1926). Modern methods in high school teaching. Houghton Mifflin Company.

Chicago Style (17th ed.) Citation

Douglass, Harl R. Modern Methods in High School Teaching. Boston, New York [etc.]: Houghton Mifflin Company, 1926.

MLA (9th ed.) Citation

Douglass, Harl R. Modern Methods in High School Teaching. Houghton Mifflin Company, 1926.