Matthews & Kerr, Inc. (1938). Matthews & Kerr, Inc.: General catalog no.38 (General catalog no. 38.). Matthews & Kerr.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMatthews & Kerr, Inc. Matthews & Kerr, Inc.: General Catalog No.38. General catalog no. 38. [Spokane, Washington]: Matthews & Kerr, 1938.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMatthews & Kerr, Inc. Matthews & Kerr, Inc.: General Catalog No.38. General catalog no. 38. Matthews & Kerr, 1938.
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