Παραπομπή σε μορφή APA (7η εκδ.)

Streefland, L. (1991). Fractions in realistic mathematics education: A paradigm of developmental research. Kluwer Academic Publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Streefland, Leen. Fractions in Realistic Mathematics Education: A Paradigm of Developmental Research. Dordrecht: Kluwer Academic Publishers, 1991.

Παραπομπή σε μορφή MLA (9th εκδ.)

Streefland, Leen. Fractions in Realistic Mathematics Education: A Paradigm of Developmental Research. Kluwer Academic Publishers, 1991.