Cita APA (7a ed.)

Hill, C., Robertson, B., & Hazelwood, S. J. (1988). An introduction to P & I. Lloyd's of London Press.

Cita Chicago Style (17a ed.)

Hill, Christopher, Bill Robertson, y Steven J. Hazelwood. An Introduction to P & I. London: Lloyd's of London Press, 1988.

Cita MLA (9a ed.)

Hill, Christopher, et al. An Introduction to P & I. Lloyd's of London Press, 1988.