Lang, R. W. (1974). The politics of drugs: A comparative pressure-group study of the Canadian Pharmaceutical Manufacturers Association and the Association of the British Pharmaceutical Industry, 1930-1970. Saxon House ; Lexington Books.
Παραπομπή σε μορφή Chicago (17η εκδ.)Lang, Ronald William. The Politics of Drugs: A Comparative Pressure-group Study of the Canadian Pharmaceutical Manufacturers Association and the Association of the British Pharmaceutical Industry, 1930-1970. Farnborough, Hants. : Lexington, Mass.: Saxon House ; Lexington Books, 1974.
Παραπομπή σε μορφή MLA (8th εκδ.)Lang, Ronald William. The Politics of Drugs: A Comparative Pressure-group Study of the Canadian Pharmaceutical Manufacturers Association and the Association of the British Pharmaceutical Industry, 1930-1970. Saxon House ; Lexington Books, 1974.