1. Aha! Aha! insight
پدیدآورنده : Martin Gardner ; )framed drawings by Jim Glen, diagrs. by Felix Cooper(,Title
کتابخانه: Central Library of Imam Khomeini International University of Qazvin (Qazvin)
موضوع : Mathematical recreations,Puzzles,Problem solving
رده :
QA
.
G23
95
