Não informado. (2002). California parent teacher. National Congress of Parents and Teachers.
Chicago-referens (17:e uppl.)Não informado. California Parent Teacher. Los Angeles, Calif: National Congress of Parents and Teachers, 2002.
MLA-referens (8:e uppl.)Não informado. California Parent Teacher. National Congress of Parents and Teachers, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.