APA-viite (7. p.)

Wirosardjono, S. (1973). On the theory of systematic cluster sampling with probability proportional to size [microform]. Photoduplication Service.

Chicago-viite (17. p.)

Wirosardjono, Soetjipto. On the Theory of Systematic Cluster Sampling with Probability Proportional to Size [microform]. Quezon City: Photoduplication Service, 1973.

MLA-viite (9. p.)

Wirosardjono, Soetjipto. On the Theory of Systematic Cluster Sampling with Probability Proportional to Size [microform]. Photoduplication Service, 1973.