Παραπομπή σε μορφή APA (7η εκδ.)

Ostle, B. (1975). Statistics in research: Basic concepts and techniques for research workers (3rd ed.). Iowa State University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ostle, Bernard. Statistics in Research: Basic Concepts and Techniques for Research Workers. 3rd ed. Ames: Iowa State University Press, 1975.

Παραπομπή σε μορφή MLA (8th εκδ.)

Ostle, Bernard. Statistics in Research: Basic Concepts and Techniques for Research Workers. 3rd ed. Iowa State University Press, 1975.