Cita APA (7a ed.)

Foskett, D., Sewell, P., & Penna, C. V. (1977). National library and information services: A handbook for planners. Butterworths.

Cita Chicago Style (17a ed.)

Foskett, D.J, P.H Sewell, y Carlos Víctor Penna. National Library and Information Services: A Handbook for Planners. London: Butterworths, 1977.

Cita MLA (9a ed.)

Foskett, D.J, et al. National Library and Information Services: A Handbook for Planners. Butterworths, 1977.