Wickelgren, Wayne A. How to solve mathematical problems / Wayne A. Wickelgren. - 1a ed. - New York : DOVER publications, inc., 1995 - ix, 262 p. : il. ; 21 cm. - Dover books on mathematical & logical puzzles, cryptography, and word recreations . Incluye bibliografía e índice ISBN: 0486284336 Subjects--Topical Terms: Matemáticas--Problemas, ejercicios, etc. LC Class. No.: QA43 / W53 1995