APA aipamena

(1973). Gregg shorthand for colleges. USA: New York.

Chicago Style aipamena

Gregg Shorthand for Colleges. USA: New York, 1973.

MLA aipamena

Gregg Shorthand for Colleges. USA: New York, 1973.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.