APA (7th ed.) Citation

Drummond, H. (1961). The greatest thing in the world. Grosset & Dunlap.

Chicago Style (17th ed.) Citation

Drummond, Henry. The Greatest Thing in the World. New York: Grosset & Dunlap, 1961.

MLA (9th ed.) Citation

Drummond, Henry. The Greatest Thing in the World. Grosset & Dunlap, 1961.

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