APA aipamena

Harina, R. (1991). Programmed computer learning. National BookStore.

Chicago Style aipamena

Harina, R.M. Programmed Computer Learning. Metro Manila: National BookStore, 1991.

MLA aipamena

Harina, R.M. Programmed Computer Learning. National BookStore, 1991.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.