1. Some common problems in the design and conduct of experiments in stuttering;Adams;Journal of Speech and Hearing Disorders,1974
2. Asimov's guide to science;Asimov,1972
3. Perhaps it would be better not to know everything;Baer;Journal of Applied Behavior Analysis,1977
4. Some current dimensions of applied behavior analysis;Baer;Journal of Applied Behavior Analysis,1968
5. The acquisition of negation;Bellugi,1967