APA Style

Roy, Jaytilak Guha. (). An Introduction to Petroleum Industry Upstream Sector : easy to read and easy to understand. . : .

Chicago Style

Roy, Jaytilak Guha. An Introduction to Petroleum Industry Upstream Sector : easy to read and easy to understand.. : , . .

MLA Style

Roy, Jaytilak Guha. An Introduction to Petroleum Industry Upstream Sector : easy to read and easy to understand.. : , . .

Turabian Style

Roy, Jaytilak Guha. An Introduction to Petroleum Industry Upstream Sector : easy to read and easy to understand.. : , . .