Cita APA (7th ed.)

O?ate, B. T., & Bader, J. M. O. (1989). Sampling surveys and applications. S.n.

Cita Chicago (17th ed.)

O?ate, Burton T., i Julia Mercedes O. Bader. Sampling Surveys and Applications. College, Laguna: S.n, 1989.

Cita MLA (9th ed.)

O?ate, Burton T., i Julia Mercedes O. Bader. Sampling Surveys and Applications. S.n, 1989.