1. Effects of alcohol, chlordiazepoxide, cocaine and pentobarbital on responding maintained under fixed-interval schedules of food or shock presentation;Barrett;Journal of Pharmacology and Experimental Therapeutics,1976
2. Effects of d-amphetamine on schedule-controlled key pressing and drinking in the chimpanzee;Byrd;Journal of Pharmacology and Experimental Therapeutics,1973
3. Modification of the effects of chloropromazine on behavior in the chimpanzee;Byrd;Journal of Pharmacology and Experimental Therapeutics,1974
4. Contrasting effects of morphine on schedule-controlled behavior in the chimpanzee and baboon;Byrd;Journal of Pharmacology and Experimental Therapeutics,1975