APA
"United Nations I. C. O. T. D. O. P. I. (. . I. D. C., . (1966). Studies in petrochemicals. New: York United Nations USA.
Chicago
"United Nations Interregional Conference On The Development Of Petrochemical Industries (1969 In Developing Countries)", . 1966. Studies in petrochemicals. New: York United Nations USA.
Harvard
"United Nations I. C. O. T. D. O. P. I. (. . I. D. C., . (1966). Studies in petrochemicals. New: York United Nations USA.
MLA
"United Nations Interregional Conference On The Development Of Petrochemical Industries (1969 In Developing Countries)", . Studies in petrochemicals. New: York United Nations USA. 1966.
