Comstock, D. F., & Troland, L. T. (1921). The nature of matter and electricity: An outline of modern views. D. Van Nostrand company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रComstock, Daniel F., और Leonard Thompson Troland. The Nature of Matter and Electricity: An Outline of Modern Views. New York: D. Van Nostrand company, 1921.
एमएलए (8वां संस्करण) प्रशस्ति पत्रComstock, Daniel F., और Leonard Thompson Troland. The Nature of Matter and Electricity: An Outline of Modern Views. D. Van Nostrand company, 1921.
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