APA
Habibullah, . (1993). Ventilation Polution-Hazards of Depletion of Ozone Layer by CFCS of Refrigerants. Jamshoro: Pakistan Study Centre.
Chicago
Habibullah, . 1993. Ventilation Polution-Hazards of Depletion of Ozone Layer by CFCS of Refrigerants. Jamshoro: Pakistan Study Centre.
Harvard
Habibullah, . (1993). Ventilation Polution-Hazards of Depletion of Ozone Layer by CFCS of Refrigerants. Jamshoro: Pakistan Study Centre.
MLA
Habibullah, . Ventilation Polution-Hazards of Depletion of Ozone Layer by CFCS of Refrigerants. Jamshoro: Pakistan Study Centre. 1993.