美国
NIAID和中国成立50周年科学研讨会`NIAIDs 50th anniversary scientific symposium (1998) by National Institutes of Health
美国
《世纪插画月刊》。二十五周年纪念号码`The Century illustrated monthly magazine. Twenty fifth anniversary number (1895)
美国
艺术学生五十周年纪念展纽约联盟`Fiftieth anniversary exhibition of the Art Students League of New York (1925) by Allen Lewis
美国
职业教育学院十周年纪念大会`Tenth anniversary Career Education Institute honors convocation (1981) by National Institutes of Health
- 1