VELÁSQUEZ-M., J. G.; CARDONA-MEJÍA, C. COMPARISON OF SAMPLING METHODS AND DEVELOPMENT OF A SEQUENTIAL SAMPLING FOR CHRYSOMELIDS AND LEAF-KEEPERS IN BEANS. Rev. Colomb. Entomol. 1982, 8 (3-4), 11-18. https://doi.org/10.25100/socolen.v8i3-4.10311.