Herrmann, B. (1991). Trust: The hand book ; a guide to the sensual and spiritual art of handballing / Bert Herrman. Alamo Square.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHerrmann, Bert. Trust: The Hand Book ; a Guide to the Sensual and Spiritual Art of Handballing / Bert Herrman. San Francisco: Alamo Square, 1991.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHerrmann, Bert. Trust: The Hand Book ; a Guide to the Sensual and Spiritual Art of Handballing / Bert Herrman. Alamo Square, 1991.
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