共 50 条
- [31] UNITED-STATES PARTICIPATION IN THE CHEMISTRY OLYMPIAD ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1991, 202 : 11 - CHED
- [32] DEVELOPMENT OF PHD IN CHEMISTRY IN UNITED-STATES ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1976, : 20 - 20
- [33] UNITED-STATES CHEMISTRY STAMPS AND COVERS ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1983, 186 (AUG): : 15 - HIST
- [34] THE FUTURE OF CHEMISTRY EDUCATION IN THE UNITED-STATES BOLETIN DE LA SOCIEDAD CHILENA DE QUIMICA, 1992, 37 (04): : 251 - 257
- [39] ACID PRECIPITATION - ORIGINS AND DISTRIBUTION IN THE UNITED-STATES JOURNAL AMERICAN WATER WORKS ASSOCIATION, 1985, 77 (04): : 51 - 51