APA Style
Gibson, J, B., Sobin, L, H. (1978).
Histological typing of tumours of the liver biliary tract and pancreas .
London:
World Health Organization.
MLA Style
Gibson, J, B., Sobin, L, H.
"Histological typing of tumours of the liver biliary tract and pancreas".
London:
World Health Organization,
1978.
Text.