Description: How to solve it :

Main Author:	Polya, George, 1887-1985
Format:	Book
Language:	English
Published:	Princeton, New Yersey: Princeton Univeristy Press, 1973
Edition:	2nd ed.
Subjects:	ΜΑΘΗΜΑΤΙΚΑ * > ΜΕΛΕΤΗ ΚΑΙ ΔΙΔΑΣΚΑΛΙΑ * ΜΑΘΗΜΑΤΙΚΑ, ΕΦΑΡΜΟΓΗ ΤΩΝ