GWINN, R. P. The New Encyclopaedia Britannica: macropaedia (V 29 United - Zoroastrianism) Robert P. Gwinn - 15th ed. - Chicago Encyclopaedia Britannica, inc. 1989 - V29 (1147p.) ill. maps. Knowledge in depth.include colour pictures, maps. chart .table. ISBN: 085229493X Subjects--Topical Terms: ENCYCLOPEDIES AND DICTIONARIES Dewey Class. No.: REF 032 / GRn89