H.F. Abeles and S.Y. Porter, "The Sex-Stereotyping of Musical Instruments," Journal of Research in Music Education, 26 ( 1978): 65-75; J.K. Delzell and D.A. Leppla, "Gender Association of Music Instruments and Preference of Fourth-Grade Students for Selected Instruments," Journal of Research in Music Education, 40 (1992): 93-103.
2.
McGraw Hill Book Company Publications, "Guidelines for Equal Treatment of the Sexes in McGraw-Hill Book Company Publications," New York Times Magazine, October 20, 1974.
