APA (7th ed.) Citation

Hawker, L. E. (1960). An introduction to the biology of micro-organisms. St. Martin's Press.

Chicago Style (17th ed.) Citation

Hawker, Lilian E. An Introduction to the Biology of Micro-organisms. New York: St. Martin's Press, 1960.

MLA (9th ed.) Citation

Hawker, Lilian E. An Introduction to the Biology of Micro-organisms. St. Martin's Press, 1960.