CCM Information Corporation & Smithsonian Institution. Science Information Exchange. (1971). Environmental pollution; a guide to current research. Produced from data gathered by Science Information Exchange, Smithsonian Institution, Washington, D. C. s.n.
Cita Chicago Style (17a ed.)CCM Information Corporation y Smithsonian Institution. Science Information Exchange. Environmental Pollution; a Guide to Current Research. Produced from Data Gathered by Science Information Exchange, Smithsonian Institution, Washington, D. C. New York: s.n, 1971.
Cita MLA (9a ed.)CCM Information Corporation y Smithsonian Institution. Science Information Exchange. Environmental Pollution; a Guide to Current Research. Produced from Data Gathered by Science Information Exchange, Smithsonian Institution, Washington, D. C. s.n, 1971.