APA Style
Petterson, G. (1994).
Viewpoint 1992-94 : a selection of speeches by Dr Subroto, Secretary General of OPEC .
Routledge:
Baker Books.
MLA Style
Petterson, Graham.
"Viewpoint 1992-94 : a selection of speeches by Dr Subroto, Secretary General of OPEC".
Routledge:
Baker Books,
1994.
Text.