(1978). Sadharana rogangalum avayude nivarana margangalum.
Chicago Style aipamenaSadharana Rogangalum Avayude Nivarana Margangalum. 1978.
MLA aipamenaSadharana Rogangalum Avayude Nivarana Margangalum. 1978.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.