Cita APA (7th ed.)

Troup, K. D. (1972). Second International Tug Conference. Thomas Reed Industrial Press.

Cita Chicago (17th ed.)

Troup, Kenneth D. Second International Tug Conference. Londres: Thomas Reed Industrial Press, 1972.

Cita MLA (9th ed.)

Troup, Kenneth D. Second International Tug Conference. Thomas Reed Industrial Press, 1972.