Neuberger, A.; Smith, R. L. (1983). "Richard Tecwyn Williams: The Man, His Work, His Impact". Drug Metabolism Reviews. 14 (3): 559–607. doi:10.3109/03602538308991399. PMID6347595.
Neuberger, A.; Smith, R. L. (1983). "Richard Tecwyn Williams: The Man, His Work, His Impact". Drug Metabolism Reviews. 14 (3): 559–607. doi:10.3109/03602538308991399. PMID6347595.