Gupta, A. (1996). How to control Asthma. UBSPD.
Chicago Style (17th ed.) ZitazioaGupta, Arun. How to Control Asthma. New Delhi: UBSPD, 1996.
MLA (9th ed.) ZitazioaGupta, Arun. How to Control Asthma. UBSPD, 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.