Gaya APA

Wonnacott, R, J., Wonnacott, T, H. (1977). Introductory statistics for business and economics (2nd Ed.). New York: John Wiley & Sons, Inc..

Gaya MLA

Wonnacott, Ronald, J.., Wonnacott, Thomas., H.. "Introductory statistics for business and economics". 2nd Ed. New York: John Wiley & Sons, Inc., 1977. Text.