Παραπομπή APA
Schnackel, H. G. 1., & Lang, H. C. 1. (1929). Accounting by machine methods: Design and operation of modern systems. New York: Ronald Press Co..
Παραπομπή Chicago StyleSchnackel, Harry Gregory 1894-, and Henry Carlton 1898- Lang. Accounting By Machine Methods: Design and Operation of Modern Systems. New York: Ronald Press Co., 1929.
Παραπομπή MLASchnackel, Harry Gregory 1894-, and Henry Carlton 1898- Lang. Accounting By Machine Methods: Design and Operation of Modern Systems. New York: Ronald Press Co., 1929.
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