Clevenger, Dale. The Dale Clevenger French horn methods [Música impresa] / by Dale Clevenger, Mark McDunn [and] Harold Rusch. - Park Ridge, Illinois : Neil A. Kjos, c1974. - 2 v. : il. ; 31 cm. - Kjos lessons with the artist series . Kjos Music Co. Ed. L-195 LCCN: 7799 Subjects--Topical Terms: Trompa---Mètodes.Trompa---Estudis i exercicis.