00326nam a2200109Ia 4500008004100000041000700041100002800048245004300076260003400119300003100153650003200184180323s9999||||xx |||||||||||||| ||und||  aAS  a"TROXELL, George Earl " 0aCompotition and properties of concrete  b"New York: McGraw Hill, 1956"  a"xiv, 434 p.; ind.; 21 cm"  a"BANGUNAN, BAHAN BANGUNAN "