Não informado. (1972). Optical Engineering. Society of Photo-Optical Instrumentation Engineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Optical Engineering. Redondo Beach, Calif: Society of Photo-Optical Instrumentation Engineers, 1972.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Optical Engineering. Society of Photo-Optical Instrumentation Engineers, 1972.
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