Gaya APA
BEERS, C, S. et al (2010).
APRINCIPAL'S GUIDE TO LITERACY INSTRUCTION .
United States of America:
the gilford press.
Gaya MLA
BEERS, CAROL, S. et al.
"APRINCIPAL'S GUIDE TO LITERACY INSTRUCTION".
United States of America:
the gilford press,
2010.
Text.