Editore: D. W. Haering & Co., 1943
Da: Riverby Books, Fredericksburg, VA, U.S.A.
Soft cover. Condizione: Good. Stapled softcover trade catalog. Bright green pictorial wraps with black and green lettering. A faint smudge here and there on the wraps, but otherwise clean and bright. Front cover is dated 1943. Stated 5th edition. 27 pages, free of marks. Heavily illustrated D. W. Haering trade catalog detailing, with many equations and charts, organic methods of scale and corrosion control. A good copy.