Παραπομπή APA

Lopez, R. H. (1970). The ethylene-producing industry: Its growth and regional distribution in the United States. New York: Praeger Publishers.

Παραπομπή Chicago Style

Lopez, Raymond Henry. The Ethylene-producing Industry: Its Growth and Regional Distribution in the United States. New York: Praeger Publishers, 1970.

Παραπομπή MLA

Lopez, Raymond Henry. The Ethylene-producing Industry: Its Growth and Regional Distribution in the United States. New York: Praeger Publishers, 1970.

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