Bibliography of the Grand Canyon and the Lower Colorado River From 1540 Compiled by Earle E. Spamer for the Grand Canyon Natural History Association and published as their Monograph Number 8 in 1990, ISBN 0938216376. This is the 2nd edition of the Bibliography and replaces the 1st edition, which was published as Monograph # 2 in 1981. Also included is Supplement 1, published in 1993 with ISBN 0938216473.
Both documents are in loose leaf format punched for and housed in a 3-ring binder with a plastic pictorial cover which has the same picture as Monograph 8. The document appears to be unused - the sections of the document have not been rearranged into the tabbed sections whose dividers are included in the notebook. The only flaw to report is mild shelf wear on the cover.
