中国科学技术信息研究所--国家工程技术数字图书馆

city university of new york.(93)

columbia university.(75)

new york university.(59)

harvard university.(48)

university of california berkeley.(39)

university of toronto (canada).(31)

university of washington.(30)

city university of new york(27)

university of pennsylvania.(26)

university of southern california.(26)

university of california los angeles.(25)

arizona state university.(24)

university of minnesota.(23)

pratt institute.(21)

fordham university.(20)

university of cincinnati.(20)

university of missouri - kansas city.(20)

rutgers the state university of new jersey - new brunswick.(19)

state university of new york at binghamton.(19)

state university of new york at buffalo.(18)

walden university.(18)

the university of chicago.(17)

yale university.(16)

teachers college columbia university.(15)

the chinese university of hong kong (hong kong).(15)

tufts university.(15)

the ohio state university.(14)

university of kansas.(14)

university of maryland college park.(14)

boston university.(13)