Educational publishers. Editeurs scolaires & United Educational, Scientific and Cultural Organization. (1962). Editors de publicaciones pedagogicas. Unesco.
Cita Chicago (17th ed.)Educational publishers. Editeurs scolaires i Scientific and Cultural Organization United Educational. Editors De Publicaciones Pedagogicas. Paris: Unesco, 1962.
Cita MLA (9th ed.)Educational publishers. Editeurs scolaires i Scientific and Cultural Organization United Educational. Editors De Publicaciones Pedagogicas. Unesco, 1962.
Atenció: Aquestes cites poden no estar 100% correctes.