HIMMEL DAVID. (1992). WORKOUT C: LEARN C THROUGH EXERCISES. GALGOTIA PUBLICATIONS.
芝加哥风格引文HIMMEL DAVID. WORKOUT C: LEARN C THROUGH EXERCISES. NEW DELHI: GALGOTIA PUBLICATIONS, 1992.
MLA引文HIMMEL DAVID. WORKOUT C: LEARN C THROUGH EXERCISES. GALGOTIA PUBLICATIONS, 1992.
警告：这些引文格式不一定是100％准确.