Parker Sybil P Ed. McGraw-Hill encyclopedia of science and technology - 8th - New York McGraw-Hill 1997 - p. cm. ISBN: 0079115047(set) (hbd) Standard No.: 4907 Source: Reference Collections Subjects--Topical Terms: EncyclopediaScience Dewey Class. No.: Ak, L1;N7.1-.20 RR