Salas, S. L. (1974). Calculus: One and several variables part 1 (2nd ed.). Xerox college.
芝加哥风格引文Salas, Saturnino L. Calculus: One and Several Variables Part 1. 2nd ed. Lexington: Xerox college, 1974.
MLA引文Salas, Saturnino L. Calculus: One and Several Variables Part 1. 2nd ed. Xerox college, 1974.
警告：这些引文格式不一定是100％准确.