Cita APA (7th ed.)

HOLMES, N. J., LEAKE, J. B., & SHAW, M. W. Gateways to science. Webster Division.

Cita Chicago (17th ed.)

HOLMES, Neal J., John B. LEAKE, i Mary W. SHAW. Gateways to Science. New York: Webster Division.

Cita MLA (9th ed.)

HOLMES, Neal J., et al. Gateways to Science. Webster Division.