Angel, A. R. (1992). Elementary algebra for college students (3rd ed.). Prentice hall.
芝加哥风格引文Angel, Allen R. Elementary Algebra for College Students. 3rd ed. New Jersey: Prentice hall, 1992.
MLA引文Angel, Allen R. Elementary Algebra for College Students. 3rd ed. Prentice hall, 1992.
警告：这些引文格式不一定是100％准确.