Platt, R. (1994). Smithsonian visual timeline of inventions (1st American ed.). Dorling Kindersley.
Cita Chicago Style (17a ed.)Platt, Richard. Smithsonian Visual Timeline of Inventions. 1st American ed. London ; New York: Dorling Kindersley, 1994.
Cita MLA (8a ed.)Platt, Richard. Smithsonian Visual Timeline of Inventions. 1st American ed. Dorling Kindersley, 1994.
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