Symposium on the Role of Learning in Psychotherapy (1968 : London, England) Porter, Ruth. Ciba Foundation. Wiley InterScience (Online service)

Symposium on Systemic Mycoses (1967 : University College Hospital (Ibadan, Nigeria)) Baikie, William Balfour, 1825-1864. Wolstenholme, G. E. W. (Gordon Ethelbert Ward) Porter, Ruth. Ciba Foundation.

Symposium on Development of the Lung (1965 : London, England) De Reuck, Anthony V. S. Porter, Ruth. Ciba Foundation. Wiley InterScience (Online service)

Symposium on Drug Responses in Man (1966 : London, England) Wolstenholme, G. E. W. (Gordon Ethelbert Ward) Porter, Ruth. Ciba Foundation. Wiley InterScience (Online service)

Ciba Foundation Symposium: The Thymus, Experimental and Clinical Studies (1965 : Melbourne, Vic.) Burnet, F. M. (Frank Macfarlane), Sir, 1899-1985. Wolstenholme, G. E. W. (Gordon Ethelbert Ward) Porter, Ruth. Ciba Foundation.

Symposium on Transcultural Psychiatry (1965 : London, England) De Reuck, Anthony V. S. Porter, Ruth. Ciba Foundation. Wiley InterScience (Online service)