PRATT, D. J. (1995). Fundamentals of construction estimating. Delmar Pub.
Lua i Stíl Chicago (17ú heag.)PRATT, David J. Fundamentals of Construction Estimating. Albany: Delmar Pub, 1995.
Lua MLA (9ú heag.)PRATT, David J. Fundamentals of Construction Estimating. Delmar Pub, 1995.
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