Kuppuram, G. (2002). Methods of Historical Research. Sundeep Prakashan.
Chicago Style aipamenaKuppuram, G. Methods of Historical Research. New Delhi: Sundeep Prakashan, 2002.
MLA aipamenaKuppuram, G. Methods of Historical Research. Sundeep Prakashan, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.