ALLEN, R. G. D. (1966). Statistics for economists. Hutchinson.
Cita Chicago (17th ed.)ALLEN, Roy George Douglas. Statistics for Economists. London: Hutchinson, 1966.
Cita MLA (9th ed.)ALLEN, Roy George Douglas. Statistics for Economists. Hutchinson, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.