APA (7th ed.) Citation

Page, D. A. (1965). Ways to find how many. Educational Services Inc.

Chicago Style (17th ed.) Citation

Page, David A. Ways to Find How Many. Watertown, Mass: Educational Services Inc, 1965.

MLA (9th ed.) Citation

Page, David A. Ways to Find How Many. Educational Services Inc, 1965.

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