[1]
L. Hertentains, F. Lezcano, and S. Ríos-A., “EFFECT OF THE DOSES OF HERBICIDES IN THE CHEMICAL CONTROL OF THE HELIOTROPO (Hedichium coronarium) IN CORDILLERA, CHIRIQUI, PANAMA. 1993.”, ciencia-agropecuaria, no. 9, pp. 117-126, Feb. 1998.