1. A meeting on the cactus trade;Anderson;Cact. & Succ. J. (US),1982
2. Black magic in cactus country;Anderson;Garden,1987
3. Physiology of germinating orchid seeds;Arditti,1984
4. In vitro propagation of Aconitum noveboracense and Aconitum napellus;Cervelli;HortScience,1987
5. Clonal propagation of orchids from leaf tips;Churchill;Amer. Orch. Soc. Bull.,1971