APA (7th ed.) Citation

Perlmann, G. E., & Lorand, L. (1970). Proteolytic enzymes. Academic Press.

Chicago Style (17th ed.) Citation

Perlmann, Gertrude E., and Laszlo Lorand. Proteolytic Enzymes. New York: Academic Press, 1970.

MLA (8th ed.) Citation

Perlmann, Gertrude E., and Laszlo Lorand. Proteolytic Enzymes. Academic Press, 1970.