-. (1980). Compton's encyclopedia and fact-index vol.18. F.E. Compton Co.
Chicago Style (17th ed.) Citation-. Compton's Encyclopedia and Fact-index Vol.18. Chicago: F.E. Compton Co, 1980.
MLA (9th ed.) Citation-. Compton's Encyclopedia and Fact-index Vol.18. F.E. Compton Co, 1980.
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