Das, Pradip Kumar.
Petroleum and coal / by Pradip Kumar Das,Hrishikesh Baruah. - 1st ed / - New Delhi : M.D.Publications Pvt.Ltd. , 2997 - vii,139p :
81-7533-042-2
Geology
H2 / N7;2
Petroleum and coal / by Pradip Kumar Das,Hrishikesh Baruah. - 1st ed / - New Delhi : M.D.Publications Pvt.Ltd. , 2997 - vii,139p :
81-7533-042-2
Geology
H2 / N7;2