登入選單

返回Google圖書搜尋

Persistence, Intention and Commitment

Philip R. CohenCenter for the Study of Language and Information (U.S.)Hector J. Levesque

出版	Center for the Study of Language and Information, 1987
URL	http://books.google.com.hk/books?id=tt0bAQAAIAAJ&hl=&source=gbs_api