APA (7th ed.) Citation

Perlmann, G. E. (1981). Proteolytic enzymes. Academic Press.

Chicago Style (17th ed.) Citation

Perlmann, Gertrude E. Proteolytic Enzymes. New York, NY [u.a.]: Academic Press, 1981.

MLA (9th ed.) Citation

Perlmann, Gertrude E. Proteolytic Enzymes. Academic Press, 1981.

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