Παραπομπή APA

Pirog,Robert L, & Stamos,Stephen C. (1987). Energy economics: Theory and policy. Prentice - Hall.

Παραπομπή Chicago Style

Pirog,Robert L, και Stamos,Stephen C. Energy Economics: Theory and Policy. New Jersey: Prentice - Hall, 1987.

Παραπομπή MLA

Pirog,Robert L, και Stamos,Stephen C. Energy Economics: Theory and Policy. Prentice - Hall, 1987.