Comstock, D. F., & Troland, L. T. (1921). The nature of matter and electricity: An outline of modern views. D. Van Nostrand company.
Lua i Stíl Chicago (17ú heag.)Comstock, Daniel F., agus Leonard Thompson Troland. The Nature of Matter and Electricity: An Outline of Modern Views. New York: D. Van Nostrand company, 1921.
Lua MLA (8ú heag.)Comstock, Daniel F., agus Leonard Thompson Troland. The Nature of Matter and Electricity: An Outline of Modern Views. D. Van Nostrand company, 1921.
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