Schmitt, Conrad J. Espanol a descubrirlo / Conrad J Schmitt, Protase E. Woodford and Randall G. Marshall. - 4th ed. - New York : Webster Division, McGraw-Hill, c 1977. - xiv, 338 p. : ill. ; 25 cm. Includes index. 337 337 ISBN: 0-07-055395-5 Subjects--Topical Terms: Spanish language--Grammar. Dewey Class. No.: 468.3421 / S53e