365746 Penna, C. V. (1970). The planning of library and documentation services. Unesco.
Chicago Style (17th ed.) Citation365746 Penna, C. V. The Planning of Library and Documentation Services. Unesco, 1970.
MLA (9th ed.) Citation365746 Penna, C. V. The Planning of Library and Documentation Services. Unesco, 1970.
Warning: These citations may not always be 100% accurate.