Cita APA (7th ed.)

JOLLEY, J. (1968). Data study. World University Press.

Cita Chicago (17th ed.)

JOLLEY, J.L. Data Study. London: World University Press, 1968.

Cita MLA (9th ed.)

JOLLEY, J.L. Data Study. World University Press, 1968.

Atenció: Aquestes cites poden no estar 100% correctes.