APA Style

Gitnick, Gary. (1985). Current Gastro Enterolosy Vol 5 . NULL: Year Book Medical.

Chicago Style

Gitnick, Gary. Current Gastro Enterolosy Vol 5. NULL: Year Book Medical, 1985. Text.

MLA Style

Gitnick, Gary. Current Gastro Enterolosy Vol 5. NULL: Year Book Medical, 1985. Text.

Turabian Style

Gitnick, Gary. Current Gastro Enterolosy Vol 5. NULL: Year Book Medical, 1985. Print.