APA (7th ed.) Citation

Sayre, A. P. (1999). South America. Twenty-First Century Books.

Chicago Style (17th ed.) Citation

Sayre, April Pulley. South America. Brookfield, Conn.: Twenty-First Century Books, 1999.

MLA (9th ed.) Citation

Sayre, April Pulley. South America. Twenty-First Century Books, 1999.