Page, J. S. (1996). Conceptual cost estimating manual (2a. ed.). GPP.
Tohutoru Kātū Chicago (17th ed.)Page, John S. Conceptual Cost Estimating Manual. 2a. ed. Houston: GPP, 1996.
Tohutoro MLA (9th ed.)Page, John S. Conceptual Cost Estimating Manual. 2a. ed. GPP, 1996.
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