APA Style

Petrick, Alfred. (1986). Energy Resource Assessment . Colorado: Westview Press.

Chicago Style

Petrick, Alfred. Energy Resource Assessment. Colorado: Westview Press, 1986. Text.

MLA Style

Petrick, Alfred. Energy Resource Assessment. Colorado: Westview Press, 1986. Text.

Turabian Style

Petrick, Alfred. Energy Resource Assessment. Colorado: Westview Press, 1986. Print.