Biological acoustics : proceedings of a symposium held at the Zoological Society of London / Edited on behalf of the Zoological Society of London by P. T. Haskell and F. C. Fraser. Symposium on Biological Acoustics, London, 1961. Haskell, P. T. (Peter Thomas), ed. Fraser, F. C. (Francis Charles), ed. Zoological Society of London. Bioacoustics. Congresses. QL765 .S92 1961 591 ZOB Includes bibliographies. London, The Society, 1962. 1962. 1962 Text 78 p. : eng Symposia of the Zoological Society of London ; no. 7