Addressograph-Multigraph Corporation. (1936). Teacher's manual for Business office training course: Multigraph. Adressograph-Multigraph Corporation.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAddressograph-Multigraph Corporation. Teacher's Manual for Business Office Training Course: Multigraph. [Cleveland, Ohio: Adressograph-Multigraph Corporation, 1936.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAddressograph-Multigraph Corporation. Teacher's Manual for Business Office Training Course: Multigraph. Adressograph-Multigraph Corporation, 1936.
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