APA استشهاد

Croxton, F. E., & Cowden, D. J. (1960). Practical business statistics/3e (3rd ed.). Prentice-Hall.

استشهاد بنمط شيكاغو

Croxton, Frederick E., و Dudley J. Cowden. Practical Business Statistics/3e. 3rd ed. New Jersy: Prentice-Hall, 1960.

MLA استشهاد

Croxton, Frederick E., و Dudley J. Cowden. Practical Business Statistics/3e. 3rd ed. Prentice-Hall, 1960.