Fort Collins, 1961. Radioecology. Proceedings of the First National Symposium on Radioecology held at Colorado State University, Fort Collins, Colorado, September 10-15, 1961. (Conducted under the auspices of the American Institute of Biological Sciences and sponsored by the Division of Biology and Medicine of the U.S. Atomic Energy Commission in cooperation with the Institute of Environmental Biology at Colorado State University.) Edited by Vincent Schultz and Alfred W. Klement. With illustrations