Parker, S. P. (1998). McGraw-Hill concise encyclopedia of science & technology (4th ed.). McGraw-Hill.
Cita Chicago (17th ed.)Parker, Sybil P. McGraw-Hill Concise Encyclopedia of Science & Technology. 4th ed. New York: McGraw-Hill, 1998.
Cita MLA (9th ed.)Parker, Sybil P. McGraw-Hill Concise Encyclopedia of Science & Technology. 4th ed. McGraw-Hill, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.