Zelenko, Harry Orchids: the pictorial encyclopedia of Oncidium / illustrated by Harry Zelenko ... [et al.] ; edited by Mark W. Chase - 2a. ed. - 147 páginas ; 34 cm. Bibliografía: p. 125 ISBN: 0966134435 Subjects--Topical Terms: ORQUIDEAS - ECUADOR Dewey Class. No.: 584.4 / Z377o