(1992). McGraw-Hill encyclopedia of science & techno-: Logy: an international reference work in (7th ed.). McGraw-Hill.
Cita Chicago (17th ed.)McGraw-Hill Encyclopedia of Science & Techno-: Logy: An International Reference Work in. 7th ed. New York: McGraw-Hill, 1992.
Cita MLA (9th ed.)McGraw-Hill Encyclopedia of Science & Techno-: Logy: An International Reference Work in. 7th ed. McGraw-Hill, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.