Northern, J. L., & Downs, M. P. (1991). Hearing in children (4th edition.). Williams & Wilkins.
芝加哥风格引文Northern, Jerry L., 与 Marion P. Downs. Hearing in Children. 4th edition. Baltimore: Williams & Wilkins, 1991.
MLA引文Northern, Jerry L., 与 Marion P. Downs. Hearing in Children. 4th edition. Williams & Wilkins, 1991.
警告：这些引文格式不一定是100％准确.