Cita APA (7th ed.)

TIPPETT, L. (1968). Statistics. Oxford Univer- sity Press.

Cita Chicago (17th ed.)

TIPPETT, L.H.C. Statistics. London: Oxford Univer- sity Press, 1968.

Cita MLA (9th ed.)

TIPPETT, L.H.C. Statistics. Oxford Univer- sity Press, 1968.