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1monograph bibliotecaUNESCO
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2by Leatherwood, Stephen, Reeves, Randall R., Perrin, William F., Evans, William E., Hobbs, Larry
Published 1982monograph bibliotecaUNESCO -
3by Leatherwood, Stephen, Caldwell, David K., Winn, Howard E., Schevill, William E, Caldwell, Melba C.
Published 1976monograph bibliotecaUNESCO -
4by Smith, Brian D., Jefferson, Thomas A., Dao, Tan Ho, Leatherwood, Stephen, Chu, Van Thuoc, Michael, Andersen, Ernest, Chiam
Published 1995Journal Contribution bibliotecaUNESCO