Salas, S. L. (1974). Calculus: One and several variables part 1 (2nd ed.). Xerox college.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSalas, Saturnino L. Calculus: One and Several Variables Part 1. 2nd ed. Lexington: Xerox college, 1974.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSalas, Saturnino L. Calculus: One and Several Variables Part 1. 2nd ed. Xerox college, 1974.
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