edited by Jane B. Lancaster ... [et al.] ; sponsored by the Social Science Research Council. edited by Kenneth C. Land and Stephen H. Schneider ; sponsored by the Social Science Research Council, U. S. A. edited by S. K. Carter ... [et al.] ; [sponsored by the Swiss League Against Cancer]. edited by Robert L. Jolley, ... [et al.] ; sponsored by Electric Power Research Institute ... [et al.] edited by Gerald R. Karr...[et al.] ; sponsored by the University of Alabama. edited by Johan A. Hellebust and J. S. Craigie ; sponsored by the Phycological Society of America Inc.