APA

International Centre for Industrial Studies (Washington D. C.), United Nations (Washington D. C.). Industrial Development Organization, . (1978). Draft world-wide study of the petrochemical industry. Washington, D. C: UNIDO.

Chicago

International Centre for Industrial Studies (Washington D. C.), United Nations (Washington D. C.). Industrial Development Organization, . 1978. Draft world-wide study of the petrochemical industry. Washington, D. C: UNIDO.

Harvard

International Centre for Industrial Studies (Washington D. C.), United Nations (Washington D. C.). Industrial Development Organization, . (1978). Draft world-wide study of the petrochemical industry. Washington, D. C: UNIDO.

MLA

International Centre for Industrial Studies (Washington D. C.), United Nations (Washington D. C.). Industrial Development Organization, . Draft world-wide study of the petrochemical industry. Washington, D. C: UNIDO. 1978.