Karen, R. (1985). Toward the year 2000. New York: William Morrow and Company.
Trích dẫn kiểu ChicagoKaren, Ruth. Toward the Year 2000. New York: William Morrow and Company, 1985.
MLA CitationKaren, Ruth. Toward the Year 2000. New York: William Morrow and Company, 1985.
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