PEÑA-ROJAS, E. A.; PANTOJA, A.; BEAVER, J. S. DETERMINATION OF THE PUBESCENCE OF FOUR GENETIC MATERIALS OF BEAN (Phaseolus Vulgaris L.) AND ITS EFFECT ON THE INSECT Bemisia Tabaci (Gennadius). Rev. Colomb. Entomol. 1992, 18, 41-48.