Indian Institute of petroleum. (2010). Indian institute of petroleum: Turns a golden leaf. Indian Institute of petroleum.
Citazione stile Chigago Style (17a edizione)Indian Institute of petroleum. Indian Institute of Petroleum: Turns a Golden Leaf. Dehradun: Indian Institute of petroleum, 2010.
Citatione MLA (9a ed.)Indian Institute of petroleum. Indian Institute of Petroleum: Turns a Golden Leaf. Indian Institute of petroleum, 2010.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.