Beavis, G. (1932). The book of the microscope. J.B. Lippincott Company.
Lua i Stíl Chicago (17ú heag.)Beavis, Gerald. The Book of the Microscope. Philadelphia: J.B. Lippincott Company, 1932.
Lua MLA (8ú heag.)Beavis, Gerald. The Book of the Microscope. J.B. Lippincott Company, 1932.
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