Παραπομπή σε μορφή APA (7η εκδ.)

Schaafsma, W. (1966). Hypothesis testing problems with alternative restricted by a number of inequalities. P. Noordhoff.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Schaafsma, Willem. Hypothesis Testing Problems with Alternative Restricted by a Number of Inequalities. Groningen: P. Noordhoff, 1966.

Παραπομπή σε μορφή MLA (9th εκδ.)

Schaafsma, Willem. Hypothesis Testing Problems with Alternative Restricted by a Number of Inequalities. P. Noordhoff, 1966.