APA Style
Suspi Migas IX/1989 International Energy Seminar World Energy Outlook through 2000 26 June-8 July 1989. (1989).
Iran:
Penerbit Alfabeta.
MLA Style
Suspi Migas IX/1989 International Energy Seminar World Energy Outlook through 2000 26 June-8 July 1989.
.
Iran:
Penerbit Alfabeta,
1989.
Text.