APA aipamena

(2007). Secondary School Course Classification System: School Codes for the Exchange of Data. U.S. Department of Education.

Chicago Style aipamena

Secondary School Course Classification System: School Codes for the Exchange of Data. U.S. Department of Education, 2007.

MLA aipamena

Secondary School Course Classification System: School Codes for the Exchange of Data. U.S. Department of Education, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.