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British Pharmacological Society, H. W. Kosterlitz, H. O. J. Collier, and Julian E. Villarreal. Agonist and Antagonist Actions of Narcotic Analgesic Drugs: Proceedings of the Symposium of the British Pharmacological Society, Aberdeen, July 1971. London: Macmillan, 1972.

British Pharmacological Society, et al. Agonist and Antagonist Actions of Narcotic Analgesic Drugs: Proceedings of the Symposium of the British Pharmacological Society, Aberdeen, July 1971. Macmillan, 1972.