Παραπομπή σε μορφή APA (7η εκδ.)

Troelstra, A. S., & Dalen, D. v. Constructivism in mathematics: An introduction. North-Holland ;, Sole distributors for the U.S.A. and Canada, Elsevier Science Pub. Co..

Παραπομπή σε μορφή Chicago (17η εκδ.)

Troelstra, A. S., και D. van Dalen. Constructivism in Mathematics: An Introduction. Amsterdam ; New York : New York, N.Y.: North-Holland ;, Sole distributors for the U.S.A. and Canada, Elsevier Science Pub. Co..

Παραπομπή σε μορφή MLA (9th εκδ.)

Troelstra, A. S., και D. van Dalen. Constructivism in Mathematics: An Introduction. North-Holland ;, Sole distributors for the U.S.A. and Canada, Elsevier Science Pub. Co..