Great Britain. Schools Council Project Technology. (1973). Photocell applications. Hodder and Stoughton.
Citace podle Chicago (17th ed.)Great Britain. Schools Council Project Technology. Photocell Applications. London: Hodder and Stoughton, 1973.
Citace podle MLA (9th ed.)Great Britain. Schools Council Project Technology. Photocell Applications. Hodder and Stoughton, 1973.
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