Παραπομπή σε μορφή APA (7η εκδ.)

FEHR, H. F. An introduction to sets, probability and hypothesis testing#Howard F. Fehr, Lucas N.H. Bunt, George Groosman. D.C.Helsth and Comp.

Παραπομπή σε μορφή Chicago (17η εκδ.)

FEHR, Howard F. An Introduction to Sets, Probability and Hypothesis Testing#Howard F. Fehr, Lucas N.H. Bunt, George Groosman. D.C.Helsth and Comp.

Παραπομπή σε μορφή MLA (8th εκδ.)

FEHR, Howard F. An Introduction to Sets, Probability and Hypothesis Testing#Howard F. Fehr, Lucas N.H. Bunt, George Groosman. D.C.Helsth and Comp.