Eastwood, B. (1979). Directory of audio-visual sources: History of science, medicine, and technology. Science History Publications.
Citace podle Chicago (17th ed.)Eastwood, Bruce. Directory of Audio-visual Sources: History of Science, Medicine, and Technology. New York: Science History Publications, 1979.
Citace podle MLA (8th ed.)Eastwood, Bruce. Directory of Audio-visual Sources: History of Science, Medicine, and Technology. Science History Publications, 1979.
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