APA (7th ed.) Citation
Sumner, J. B., & Somers, G. F. Chemistry and methods of enzymes (2a edición.). Academic Press.
Chicago Style (17th ed.) Citation
Sumner, James B., and G. Fred Somers. Chemistry and Methods of Enzymes. 2a edición. Nueva York, EUA: Academic Press.
MLA (9th ed.) Citation
Sumner, James B., and G. Fred Somers. Chemistry and Methods of Enzymes. 2a edición. Academic Press.
Warning: These citations may not always be 100% accurate.