Gulf Professional Publishing, Date: 1997. 5. Hardcover. Very Good. Very Good; Hardcover; Covers are still glossy with slight scuffing to the edge-corners; Unblemished textblock edges; The endpapers and all text pages are clean and unmarked; The binding is excellent with a straight spine; This book will be shipped in a sturdy cardboard box with foam padding; Medium Format (8.5" - 9.75" tall); Dark blue and red covers with title in light blue lettering; 5th Edition; 1997, Gulf Professional Publishing; 900 pages; "Gas Purification," by Arthur L Kohl & Richard Nielsen. 1997. Gulf Professional Publishing ISBN 0884152200 9780884152200 [US]