Problem-solving strategies /
Engel, Arthur.
Problem-solving strategies / Arthur Engel. - New York : Springer, c1998. - x, 403 p. : ill. ; 24 cm. - Problem books in mathematics .
9780387982199 (pbk.)
Problem solving.
510.76 ENG
Problem-solving strategies / Arthur Engel. - New York : Springer, c1998. - x, 403 p. : ill. ; 24 cm. - Problem books in mathematics .
9780387982199 (pbk.)
Problem solving.
510.76 ENG