Mathematics for elementary schools (Study with your friends) (1st. edition.). Gakkotosho Ltd.
Cita Chicago (17th ed.)Mathematics for Elementary Schools (Study with Your Friends). 1st. edition. Tokyo: Gakkotosho Ltd.
Cita MLA (9th ed.)Mathematics for Elementary Schools (Study with Your Friends). 1st. edition. Gakkotosho Ltd.
Atenció: Aquestes cites poden no estar 100% correctes.