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Immunochemical methods for environmental analysis : developed from a symposium sponsored by the Division of Agrochemicals at the 198th National Meeting of the American Chemical Society, Miami Beach, Florida, September 10-15, 1989 / Jeanette M. Van Emon, editor, Ralph O. Mumma, editor.
- 628.5
- The Society,
- 1990.
- Washington, D.C. :
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Educación general, educación especializada y ocupación en Colombia / por MarÃa Elisa Bernal, Carlos Gerado Molina.
- International Development Research Centre,
- 1990.
- Ottawa :