Cita APA (7a ed.)
Organisation for economic co-operation and development (OECD). (1964). Mathematics to-day: A guide for teachers (1a.ed.). Fehr, Howard F..
Cita Chicago Style (17a ed.)
Organisation for economic co-operation and development (OECD). Mathematics To-day: A Guide for Teachers. 1a.ed. París: Fehr, Howard F., 1964.
Cita MLA (9a ed.)
Organisation for economic co-operation and development (OECD). Mathematics To-day: A Guide for Teachers. 1a.ed. Fehr, Howard F., 1964.
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