104 number theory problems :
104 number theory problems :
Andreescu, Titu,
- Boston : Birkhäuser, 2007
- xii, 204 p. : ill. ; 24 cm.
9780817645274 (acid-free paper) | 0817645276 (acid-free paper) | 9780817645618 (e-ISBN) | 0817645616 (e-ISBN)
9780817645274 (acid-free paper) | 0817645276 (acid-free paper) | 9780817645618 (e-ISBN) | 0817645616 (e-ISBN)