APA
United Nations Economics and Social Affairs, United Nations Economics and Social Affairs, . (1996). Russian gas industry. New: York United Nations USA.
Chicago
United Nations Economics and Social Affairs, United Nations Economics and Social Affairs, . 1996. Russian gas industry. New: York United Nations USA.
Harvard
United Nations Economics and Social Affairs, United Nations Economics and Social Affairs, . (1996). Russian gas industry. New: York United Nations USA.
MLA
United Nations Economics and Social Affairs, United Nations Economics and Social Affairs, . Russian gas industry. New: York United Nations USA. 1996.