APA aipamena

(1999). Parent's Guide to the Internet. U.S. Department of Education.

Chicago Style aipamena

Parent's Guide to the Internet. U.S. Department of Education, 1999.

MLA aipamena

Parent's Guide to the Internet. U.S. Department of Education, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.