Gruber, Edward C. 2300 steps to word power GRUBER, EDWARD C. - New York, Arc Books [1963] - 235 p. 18 cm. - Arc Books giant . "1032." LCCN: 62020285 Subjects--Topical Terms: Vocabulary.English language--Programmed instruction. LC Class. No.: P175 / .G78 Dewey Class. No.: 428.076