APA (7th ed.) Zitazioa
Howarth, S. (1995). The children's atlas of the 20th century. The Millbrook Press.
Chicago Style (17th ed.) Zitazioa
Howarth, Sarah. The Children's Atlas of the 20th Century. Brookfield, CT: The Millbrook Press, 1995.
MLA (9th ed.) Zitazioa
Howarth, Sarah. The Children's Atlas of the 20th Century. The Millbrook Press, 1995.
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