APA (7th ed.) Zitazioa
Gupta, P. J. (2009). A practitioner's guide to common ano-rectal diseases. Nova Science Publishers.
Chicago Style (17th ed.) Zitazioa
Gupta, Pravin Jaiprakash. A Practitioner's Guide to Common Ano-rectal Diseases. Hauppauge, NY: Nova Science Publishers, 2009.
MLA (9th ed.) Zitazioa
Gupta, Pravin Jaiprakash. A Practitioner's Guide to Common Ano-rectal Diseases. Nova Science Publishers, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.