Burns-Balogh, Pamela A reference guide to orchidology by Pamela Burns-Balogh - Koenigstein Koeltz Scientific Books 1989 - 155 p. : ill. (some col.) ; 28 cm ISBN: 9783874292917 Subjects--Topical Terms: Orchids - Handbooks, manuals, etc Dewey Class. No.: 584.15 BUR