Cita APA (7th ed.)

Bell, J. E., & Bell, E. T. (1988). Proteins and enzymes. Prentice-Hall.

Cita Chicago (17th ed.)

Bell, John Ellis, i Evelyn T. Bell. Proteins and Enzymes. Englewood Cliffs, NJ: Prentice-Hall, 1988.

Cita MLA (9th ed.)

Bell, John Ellis, i Evelyn T. Bell. Proteins and Enzymes. Prentice-Hall, 1988.