Books listed by ISBN > Amer Society of Civil Engineers > Ray G. Helmer

Ray G. Helmer

R. H. · R. Helmer · Ray H.

titleISBN-13
(ISBN-10)		year of publication
Time Management for Engineers and Constructors978-0-7844-0303-7
(0-7844-0303-1)		1998
Time Management for Engineers and Constructors978-0-87262-793-2
(0-87262-793-4)		1991

Ray G. Hill