This is from the working library of a pipeline engineering & consulting firm which was part of the estate of the firm's owner. Hundreds of such items are being listed. Such unique and limited items make them quite scarce and collectible. 

Both by American Water Works Association, softcovers, both Ex Lib with spine label, markings, card & card jacket on inside back cover.Front of both stamped with 'BREDERO PRICE LIBRARY.' Both VG, no highlighting, tears, or holes, and tightly bound. Volumes included in this lot:

1. CONCRETE PRESURE PIPE AWWA M9 - 124 pages. 1979. Illustrated.

2. PVCPIPE DESIGN & INSTALLATION AWWA M23 - 89 pages. 1980. Illustrated.