Towards a theoretical biology : an IUBS symposium - Waddington, C. H. (Conrad Hal), 1905-1975; International Union of Biological Sciences. Symposium (Chicago : Aldine Pub., 1968)
Vol. 1. Prolegomena -- v. 2. Sketches -- v. 3. Drafts -- v. 4. Essays
Library has vol.1, 3 and 4
Keywords: Biology -- Congresses