STEWART, R. D., & STEWART, A. L. (1986). Microestimating for civil engineers. McGra-Hill.
Dyfyniad Arddull ChicagoSTEWART, Rodney D., and Ann L. STEWART. Microestimating for Civil Engineers. New York: McGra-Hill, 1986.
Dyfyniad MLASTEWART, Rodney D., and Ann L. STEWART. Microestimating for Civil Engineers. McGra-Hill, 1986.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.