APA Style
Berk, J. Edward, Haubrich, William S.. (1991).
Gastrointestinal symptoms .
Philadelphia:
B.C. Decker Inc..
Chicago Style
Berk, J. Edward, Haubrich, William S..
Gastrointestinal symptoms.
Philadelphia:
B.C. Decker Inc.,
1991.
Text.
MLA Style
Berk, J. Edward, Haubrich, William S..
Gastrointestinal symptoms.
Philadelphia:
B.C. Decker Inc.,
1991.
Text.
Turabian Style
Berk, J. Edward, Haubrich, William S..
Gastrointestinal symptoms.
Philadelphia:
B.C. Decker Inc.,
1991.
Print.