Cita APA (7a ed.)

Horn, R. V., & Horn, R. V. (1993). Statistical indicators for the economic & social sciences. Cambridge Univ. Press.

Cita Chicago Style (17a ed.)

Horn, Robert V., y Robert Victor Horn. Statistical Indicators for the Economic & Social Sciences. Cambridge [u.a.]: Cambridge Univ. Press, 1993.

Cita MLA (8a ed.)

Horn, Robert V., y Robert Victor Horn. Statistical Indicators for the Economic & Social Sciences. Cambridge Univ. Press, 1993.