Davis, Carol Beery (Compiled and arranged by); Sylvia Audrey Davis (Assistant in arranging)
Decalves, Alonso, John Van Delure [Vandeluer], James Vanleason
Hadwen, Seymour and Lawrence J. Palmer
Office of Research and Development, U. S. Environmental Protection Agency
Good Housekeeping Institute; Katharine Fisher, Director
Arenas, Manuel, Xavier Basiana, Manuel Gausa, Miguel Ruano
Anand, Mulk Raj (General Editor)
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