Dunham, C. W. (1979). Contracts, specifications, and the law for engineers / Clarence W. Dunham, Robert D. Young, Joseph T. Bockrath ; editor, Julienne Brown (3rd ed.). National Book Store.
Chicago-referens (17:e uppl.)Dunham, Clarence Whiting. Contracts, Specifications, and the Law for Engineers / Clarence W. Dunham, Robert D. Young, Joseph T. Bockrath ; Editor, Julienne Brown. 3rd ed. Manila: National Book Store, 1979.
MLA-referens (9:e uppl.)Dunham, Clarence Whiting. Contracts, Specifications, and the Law for Engineers / Clarence W. Dunham, Robert D. Young, Joseph T. Bockrath ; Editor, Julienne Brown. 3rd ed. National Book Store, 1979.
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