Pierson, R. E. (1978). Technician's and experimenter's guide to using sun, wind, and water power. West Nyack: Parker.
Παραπομπή Chicago StylePierson, Richard E. Technician's and Experimenter's Guide to Using Sun, Wind, and Water Power. West Nyack: Parker, 1978.
Παραπομπή MLAPierson, Richard E. Technician's and Experimenter's Guide to Using Sun, Wind, and Water Power. West Nyack: Parker, 1978.
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