APA Style
(ed.), R, M, S. et al
(2009).
Gastrointestinal Emergencies
(
2nd)
.
Singapore:
Wiley-Blackwell.
MLA Style
(ed.), Roy, M., Soetikno. et al.
"Gastrointestinal Emergencies".
2nd
Singapore:
Wiley-Blackwell,
2009.
Textbook.