Cita APA (7a ed.)

Line, M. B., & Line, J. (1987). National libraries 2: 1977-1985. Aslib.

Cita Chicago Style (17a ed.)

Line, Maurice B., y Joyce Line. National Libraries 2: 1977-1985. London: Aslib, 1987.

Cita MLA (9a ed.)

Line, Maurice B., y Joyce Line. National Libraries 2: 1977-1985. Aslib, 1987.