APA citiranje
Penna, C. V., Sewell, P., & Liebaers, H. (1970). The Planning of library and documentation services: 2. ed., rev. and enlarged by P.H. Sewell and Herman Liebaers. Unesco.
Chicago Style (17th ed.) Citation
Penna, Carlos Victor, P.H Sewell, and Herman Liebaers. The Planning of Library and Documentation Services: 2. Ed., Rev. and Enlarged by P.H. Sewell and Herman Liebaers. Paris: Unesco, 1970.
MLA citiranje
Penna, Carlos Victor, et al. The Planning of Library and Documentation Services: 2. Ed., Rev. and Enlarged by P.H. Sewell and Herman Liebaers. Unesco, 1970.
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