20160731 frey50
Design and control of concrete mixtures. - 12th ed. - Skokie, Ill. : Portland Cement Association, c1979. - 139 p. : ill. ; 28 cm.
0893120235
Concrete.
Design and control of concrete mixtures. - 12th ed. - Skokie, Ill. : Portland Cement Association, c1979. - 139 p. : ill. ; 28 cm.
0893120235
Concrete.