APA (7th ed.) Citation

Norling, E. R. (1939). Perspective made easy: A step-by-step method for learning the basis of drawing. The Macmillan company.

Chicago Style (17th ed.) Citation

Norling, Ernest Ralph. Perspective Made Easy: A Step-by-step Method for Learning the Basis of Drawing. New York: The Macmillan company, 1939.

MLA (9th ed.) Citation

Norling, Ernest Ralph. Perspective Made Easy: A Step-by-step Method for Learning the Basis of Drawing. The Macmillan company, 1939.