Varberg, D., & Fleming, W. (1991). Applied calculus for management, social, and life sciences (Instructor's ed.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Varberg, Dale, agus Walter Fleming. Applied Calculus for Management, Social, and Life Sciences. Instructor's ed. Englewood Cliffs: Prentice Hall, 1991.
Lua MLA (9ú heag.)Varberg, Dale, agus Walter Fleming. Applied Calculus for Management, Social, and Life Sciences. Instructor's ed. Prentice Hall, 1991.
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