00391nam a2200181Ia 4500008004100000082000800041082000800049100001900057245005200076250000900128260001800137260000900155300001000164365000600174365000600180365000600186650001700192181031s9999 xx 000 0 und d a721 bSMI aCameron Andres aPrinciples and Practices of Heavy Construction. a3rd. bPrentice Hall c1986 a401p. b0 d0 e0 aConstruction