APA引文

Pakistan National Scientific and Technical Documentation Centre. (1970). Union catalogue of scientific and technical periodicals in the libraries of Pakistan.

Chicago Style (17th ed.) Citation

Pakistan National Scientific and Technical Documentation Centre. Union Catalogue of Scientific and Technical Periodicals in the Libraries of Pakistan. Karachi, 1970.

MLA引文

Pakistan National Scientific and Technical Documentation Centre. Union Catalogue of Scientific and Technical Periodicals in the Libraries of Pakistan. 1970.