APA (7th ed.) Citation

De Kruif, P. (1926). Microbe hunters. Blue Ribbon Books.

Chicago Style (17th ed.) Citation

De Kruif, Paul. Microbe Hunters. New York: Blue Ribbon Books, 1926.

MLA (9th ed.) Citation

De Kruif, Paul. Microbe Hunters. Blue Ribbon Books, 1926.

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