Westgate, W. A A new selective spray for the control of certain weeds / W. A. Westgate and R. N. Raynor - Berkeley, Cal. : Agricultural Experiment Station - 36 p. - California Agri. Exp. Sta. Bulletin; 634 . LCCN: 201861 Subjects--Topical Terms: Malas hierbas -- Control Aspersores