Schwartz, Eugene M. How to double your child's grades in school / by Eugene M. Schwartz. - 13th ed. - New York : F. Fell, 1964. - x, 275 p. ; 22 cm. Includes index. ISBN: 0811900819 : $6.95 LCCN: 75332337 Subjects--Topical Terms: Study skills. LC Class. No.: LB1049 / .S43 1975 Dewey Class. No.: 371.3/0281