共 50 条
- [41] COMPARATIVE SUSCEPTIBILITY OF LATIN-AMERICAN AND UNITED-STATES STUDENTS TO ENTERIC PATHOGENS [J]. NEW ENGLAND JOURNAL OF MEDICINE, 1976, 295 (27): : 1520 - 1521
- [46] UNITED-STATES IMPORTS OF LATIN-AMERICAN SUGAR TO HELP SET PRODUCTION [J]. FOREIGN AGRICULTURE, 1973, 11 (45): : 10 - 12
- [50] A SUMMER OF SCIENCE - LATIN-AMERICAN TEACHERS STUDY WITH UNITED-STATES COLLEAGUES [J]. AMERICAS, 1960, 12 (11): : 16 - 21