Cita APA (7th ed.)

(1992). Using statistical sampling U.S. General Accounting Office, Program Evaluation and Methodology Division. [microform].

Cita Chicago (17th ed.)

Using Statistical Sampling U.S. General Accounting Office, Program Evaluation and Methodology Division. [microform]. 1992.

Cita MLA (9th ed.)

Using Statistical Sampling U.S. General Accounting Office, Program Evaluation and Methodology Division. [microform]. 1992.

Atenció: Aquestes cites poden no estar 100% correctes.