APA
Symposium on drilling Technology and Engineering Aids to Geological Exploration (1980 : Calcutta), . (1984). Proceeding on drilling technology and engineering aisds to geological exploration. Hyderabad: Geological Survey of India.
Chicago
Symposium on drilling Technology and Engineering Aids to Geological Exploration (1980 : Calcutta), . 1984. Proceeding on drilling technology and engineering aisds to geological exploration. Hyderabad: Geological Survey of India.
Harvard
Symposium on drilling Technology and Engineering Aids to Geological Exploration (1980 : Calcutta), . (1984). Proceeding on drilling technology and engineering aisds to geological exploration. Hyderabad: Geological Survey of India.
MLA
Symposium on drilling Technology and Engineering Aids to Geological Exploration (1980 : Calcutta), . Proceeding on drilling technology and engineering aisds to geological exploration. Hyderabad: Geological Survey of India. 1984.