TY - BOOK AU - Erst, Stephen J. AU - ED - ED - ED - ED - SN - 0-8306-9241-X (hardcover) SN - 2 PY - 1989///.46 CY - Blue Ridge Summit, PA PB - TAB Books Inc. KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Mathematics KW - Electronics N1 - Includes index; Bibliography: p. 235-237; 5 ER -