Watkins, John V. ABC of orchid growing. - Chicago, Ziff-Davis Pub. Co. [1948] - x 134 p. illus. 22 cm. LCCN: agr48000417 Subjects--Topical Terms: Orchid culture.Orchids--United States. LC Class. No.: SB409 / .W32 Dewey Class. No.: 635.93415 96.2W32