Παραπομπή σε μορφή APA (7η εκδ.)

Kraemer, H. C., & Thiemann, S. (1987). How many subjects?: Statistical power analysis in research. Sage Publications.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Kraemer, Helena Chmura, και Sue Thiemann. How Many Subjects?: Statistical Power Analysis in Research. Newbury Park: Sage Publications, 1987.

Παραπομπή σε μορφή MLA (9th εκδ.)

Kraemer, Helena Chmura, και Sue Thiemann. How Many Subjects?: Statistical Power Analysis in Research. Sage Publications, 1987.