Biblioteca do ISEL Search for 'an:1428 and au:LENGA, Robert E.'

The sigma-aldrich library of regulatory and safety data vol. 1

By Robert E. Lenga, Kristine L. Votoupal. Sigma Chemical Company and Aldrich Chemical Company 1993 . XVII, 1612 p. : il. 0-941633-35-7

By Robert E. Lenga, Kristine L. Votoupal. Sigma Chemical Company and Aldrich Chemical Company 1993 . XVII, 1613-3194 p. : il. 0-941633-35-7

By Robert E. Lenga, Kristine L. Votoupal. Sigma Chemical Company and Aldrich Chemical Company 1993 . XVII, 3195-4866 p. : il. 0-941633-35-7