APA (7th ed.) Citation

Colloms, M. (1980). High performance loudspeakers (2nd ed.). Pentech Press.

Chicago Style (17th ed.) Citation

Colloms, Martin. High Performance Loudspeakers. 2nd ed. London: Pentech Press, 1980.

MLA (8th ed.) Citation

Colloms, Martin. High Performance Loudspeakers. 2nd ed. Pentech Press, 1980.