Manual of symbols and terminology for physicochemical quantities and units :
Adopted by the IUPAC Council at Munich, Federal Republic of Germany, on 31 August 1973 /
Revision prepared for publication by M. A. Paul.

APA Citation

International Union of Pure and Applied Chemistry. Commission on Symbols, T., Paul, M. Ambrose. (1975). Manual of symbols and terminology for physicochemical quantities and units: Adopted by the IUPAC Council at Munich, Federal Republic of Germany, on 31 August 1973. 1973 ed. London: Butterworths.

MLA Citation

International Union of Pure and Applied Chemistry. Commission on Symbols, Terminology, and Units, and Martin Ambrose Paul. Manual of Symbols And Terminology for Physicochemical Quantities And Units: Adopted by the IUPAC Council At Munich, Federal Republic of Germany, On 31 August 1973. 1973 ed. London: Butterworths, 1975.