(1990). Growing up with science: The illustrated encyclopaedia of invention. Webster's home library.
Citace podle Chicago (17th ed.)Growing Up with Science: The Illustrated Encyclopaedia of Invention. Tarrytown: Webster's home library, 1990.
Citace podle MLA (9th ed.)Growing Up with Science: The Illustrated Encyclopaedia of Invention. Webster's home library, 1990.
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