Parker, C. (1975). Information Sources in Science and Technology. Butterworths.
Cita Chicago (17th ed.)Parker, C.C. Information Sources in Science and Technology. London: Butterworths, 1975.
Cita MLA (9th ed.)Parker, C.C. Information Sources in Science and Technology. Butterworths, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.