Gladstone, J. (1987). Mechanical estimating guidebook for building construction (5th ed.). McGraw-Hill.
Citace podle Chicago (17th ed.)Gladstone, John. Mechanical Estimating Guidebook for Building Construction. 5th ed. New York: McGraw-Hill, 1987.
Citace podle MLA (9th ed.)Gladstone, John. Mechanical Estimating Guidebook for Building Construction. 5th ed. McGraw-Hill, 1987.
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