共 50 条
- [35] POSTERUPTIVE EFFECTS OF FLUORIDATION ON 1ST PERMANENT MOLARS OF CHILDREN IN GRAND RAPIDS, MICHIGAN AMERICAN JOURNAL OF PUBLIC HEALTH AND THE NATIONS HEALTH, 1957, 47 (02): : 192 - 199
- [40] EDUCATIONAL MEASUREMENT IN GRAND RAPIDS JOURNAL OF EDUCATIONAL RESEARCH, 1920, 2 (03): : 611 - 614