Kummerow, J., & Hirsh, S. (1989). Lifetypes. Warner Books.
Tohutoru Kātū Chicago (17th ed.)Kummerow, Jean, me Sandra Hirsh. Lifetypes. New York, NY: Warner Books, 1989.
Tohutoro MLA (9th ed.)Kummerow, Jean, me Sandra Hirsh. Lifetypes. Warner Books, 1989.
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