Hampton, C. (1967). When did you last see my mother?: A play in six scenes. Grove Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHampton, Christopher. When Did You Last See My Mother?: A Play in Six Scenes. New York: Grove Press, 1967.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHampton, Christopher. When Did You Last See My Mother?: A Play in Six Scenes. Grove Press, 1967.
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