Proceedings and papers of the Twenty-first Annual Conference of the California Mosquito Control Association : at Sacramento and at the University of California at Davis, California, February 11, 12, 13, 1953 / edited by Harold Farnsworth Gray and G. Edwin Washburn ; publications committee, Harold F. Gray [and others].
California Mosquito Control Association. Conference 1953 : Sacramento, Calif. and Davis, Calif.) | Date: [1953?]