Cita APA (7a ed.)

Whitehead, P., & Whitehead, G. (1992). Statistics for business an introduction (2nd ed.). Pitman.

Cita Chicago Style (17a ed.)

Whitehead, Paul, y Geoffrey Whitehead. Statistics for Business an Introduction. 2nd ed. London: Pitman, 1992.

Cita MLA (9a ed.)

Whitehead, Paul, y Geoffrey Whitehead. Statistics for Business an Introduction. 2nd ed. Pitman, 1992.