APA (7th ed.) Citation

May, E. R. (1960). American intervention, 1917 and 1941. Service Center for Teachers of History.

Chicago Style (17th ed.) Citation

May, Ernest R. American Intervention, 1917 and 1941. Washington: Service Center for Teachers of History, 1960.

MLA (9th ed.) Citation

May, Ernest R. American Intervention, 1917 and 1941. Service Center for Teachers of History, 1960.

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