Cita APA (7th ed.)

BLACKWELL, D. (1969). Basic statistics. McGraw-Hill.

Cita Chicago (17th ed.)

BLACKWELL, David. Basic Statistics. New York: McGraw-Hill, 1969.

Cita MLA (9th ed.)

BLACKWELL, David. Basic Statistics. McGraw-Hill, 1969.

Atenció: Aquestes cites poden no estar 100% correctes.