Gaya APA
Walpole, R, E, &, R, H, M. (1989).
Probability and Statistics Engineers and Scientists (Fourth Edition).
New York:
Macmillan Publishing Co., Inc..
Gaya MLA
Walpole, Roland, E., &, Raymond, H., Myers.
"Probability and Statistics Engineers and Scientists".
Fourth Edition
New York:
Macmillan Publishing Co., Inc.,
1989.
Text.