Hepler, D. E., & Wallach, P. R. (1982). Architecture: Drafting and design (4th ed.). National Book Store.
Citace podle Chicago (17th ed.)Hepler, Donald E., a Paul Ross Wallach. Architecture: Drafting and Design. 4th ed. Manila: National Book Store, 1982.
Citace podle MLA (9th ed.)Hepler, Donald E., a Paul Ross Wallach. Architecture: Drafting and Design. 4th ed. National Book Store, 1982.
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