Pakistan. Directorate of Films & Publications. (1981). Pakistan: Energy resources. Ministry of Information & Broadcasting. Directorate of Films & Publications. Govt. of Pakistan.
Citace podle Chicago (17th ed.)Pakistan. Directorate of Films & Publications. Pakistan: Energy Resources. Islamabad: Ministry of Information & Broadcasting. Directorate of Films & Publications. Govt. of Pakistan, 1981.
Citace podle MLA (8th ed.)Pakistan. Directorate of Films & Publications. Pakistan: Energy Resources. Ministry of Information & Broadcasting. Directorate of Films & Publications. Govt. of Pakistan, 1981.
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