Cita APA (7th ed.)

HOLMES, N. J., LEAKE, J. B., & SHAW, M. W. (1979). Gateways to science. McGraw-Hill Bo. Co.

Cita Chicago (17th ed.)

HOLMES, Neal J., John B. LEAKE, i Mary W. SHAW. Gateways to Science. New York: McGraw-Hill Bo. Co, 1979.

Cita MLA (9th ed.)

HOLMES, Neal J., et al. Gateways to Science. McGraw-Hill Bo. Co, 1979.