APA (7th ed.) Citation

Gutfreund, H. (1965). An introduction to the study of enzymes. John Wiley & Sons.

Chicago Style (17th ed.) Citation

Gutfreund, H. An Introduction to the Study of Enzymes. New York: John Wiley & Sons, 1965.

MLA (8th ed.) Citation

Gutfreund, H. An Introduction to the Study of Enzymes. John Wiley & Sons, 1965.

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