Cita APA (7a ed.)

Welch, A. J. E. (1941). Intermediate quantitative analysis. University Tutorial Press.

Cita Chicago Style (17a ed.)

Welch, A. J. E. Intermediate Quantitative Analysis. London: University Tutorial Press, 1941.

Cita MLA (8a ed.)

Welch, A. J. E. Intermediate Quantitative Analysis. University Tutorial Press, 1941.