Shaffer, P. (1979). Three plays: Five finger exercise, shrivings, equus. Penguin Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रShaffer, Peter. Three Plays: Five Finger Exercise, Shrivings, Equus. Harmondsworth: Penguin Books, 1979.
एमएलए (8वां संस्करण) प्रशस्ति पत्रShaffer, Peter. Three Plays: Five Finger Exercise, Shrivings, Equus. Penguin Books, 1979.
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