GWINN, R. P. The New Encyclopaedia Britannica: macropaedia (V 19 Excretion-Geometry) Robert P. Gwinn - 15th ed. - Chicago Encyclopaedia Britannica, Inc. 1989 - (V 19) 1000p. ill.(some col.),maps, tables Knowledge in depth ISBN: 085229493X Subjects--Topical Terms: ENCYCLOPEDIAS AND DICTIONARIES Dewey Class. No.: REF 032 / GRn89