Parker, S. P. (2005). McGraw-Hill concise encyclopedia of science and technology (5th ed.). McGraw-Hill.
Cita Chicago (17th ed.)Parker, Sybil P. McGraw-Hill Concise Encyclopedia of Science and Technology. 5th ed. New York: McGraw-Hill, 2005.
Cita MLA (9th ed.)Parker, Sybil P. McGraw-Hill Concise Encyclopedia of Science and Technology. 5th ed. McGraw-Hill, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.