Croxton, F. (1955). Applied general statistics (2nd.). I. Pitman & Sons.
Cita Chicago (17th ed.)Croxton, F. Applied General Statistics. 2nd. Lonodon: I. Pitman & Sons, 1955.
Cita MLA (9th ed.)Croxton, F. Applied General Statistics. 2nd. I. Pitman & Sons, 1955.
Atenció: Aquestes cites poden no estar 100% correctes.