Spence, W. P., & Michael B. Atkins. (1980). Technical drafting: Metric design and communication. National Book Store.
Citace podle Chicago (17th ed.)Spence, William Perkins, a Michael B. Atkins. Technical Drafting: Metric Design and Communication. Manila: National Book Store, 1980.
Citace podle MLA (9th ed.)Spence, William Perkins, a Michael B. Atkins. Technical Drafting: Metric Design and Communication. National Book Store, 1980.
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