International Pharmacological Congress São Paulo, Brazil, Armstrong, D., Lin, K., & Pardo, E. G. (1968). Pharmacology of pain: Edited by R. K. S. Lim; co-editors: D. Armstrong and E. G. Pardo ([1st ed.].). Pergamon Press.

International Pharmacological Congress São Paulo, Brazil, Desirée Armstrong, K'o-shêng Lin, and Efraín G. Pardo. Pharmacology of Pain: Edited by R. K. S. Lim; Co-editors: D. Armstrong and E. G. Pardo. [1st ed.]. Oxford, New York: Pergamon Press, 1968.

International Pharmacological Congress São Paulo, Brazil, et al. Pharmacology of Pain: Edited by R. K. S. Lim; Co-editors: D. Armstrong and E. G. Pardo. [1st ed.]. Pergamon Press, 1968.