APA (7th ed.) Zitazioa

Streefland, L. (1993). The legacy of Hans Freudenthal. Kluwer Academic Publishers.

Chicago Style (17th ed.) Zitazioa

Streefland, Leen. The Legacy of Hans Freudenthal. Dordrecht: Kluwer Academic Publishers, 1993.

MLA (9th ed.) Zitazioa

Streefland, Leen. The Legacy of Hans Freudenthal. Kluwer Academic Publishers, 1993.