Gaya APA

The Young child and the environment : issues related to health, nutrition safety and physical activity / Nancy E. Sayre, Jere Dee Callagher. (2001). : Boston : Allyn and Bacon.

Gaya MLA

The Young child and the environment : issues related to health, nutrition safety and physical activity / Nancy E. Sayre, Jere Dee Callagher. . : Boston : Allyn and Bacon, 2001. Text.