APA引文

Penna, C. V. (1977). National library and information services: A handbook for planners. Butterworths.

Chicago Edition Citation

Penna, C. V. National Library and Information Services: A Handbook for Planners. London: Butterworths, 1977.

MLA引文

Penna, C. V. National Library and Information Services: A Handbook for Planners. Butterworths, 1977.

警告：這些引文格式不一定是100％准確.