APA (7th ed.) Citation

Holtz, F. L. (1923). Principles and methods of teaching geography. Macmillan.

Chicago Style (17th ed.) Citation

Holtz, Frederick Leopold. Principles and Methods of Teaching Geography. New York: Macmillan, 1923.

MLA (9th ed.) Citation

Holtz, Frederick Leopold. Principles and Methods of Teaching Geography. Macmillan, 1923.

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