APA (7th ed.) Citation

Froman, R. (1972). Venn diagrams. Thomas Y. Crowell.

Chicago Style (17th ed.) Citation

Froman, Robert. Venn Diagrams. New York: Thomas Y. Crowell, 1972.

MLA (9th ed.) Citation

Froman, Robert. Venn Diagrams. Thomas Y. Crowell, 1972.

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