Gaya APA

Paul, R, S., Heussler, E, F. (1990). Introduction mathematical analyisi for business, economics, and the life and social sciences (6th ed.). Englewood Cliffs, N.J.: Prentice Hall.

Gaya MLA

Paul, Richard, S.., Heussler, Ernest, F.. "Introduction mathematical analyisi for business, economics, and the life and social sciences". 6th ed. Englewood Cliffs, N.J.: Prentice Hall, 1990. Text.