TY - BOOK AU - Posamentier, Alfred S AU - Salkind, Charles T TI - Challenging problems in geometry SN - 9780486691541 SN - 95052535 U1 - 516.0076 POS PY - 1996/// CY - Mineola, NY PB - Dover Publications KW - Geometry - Problems, exercises, etc N1 - Originally published: Palo Alto, Calif. : Dale Seymour Publications, 1970 ER -