Cita APA

Hoffman, G. W. (1985). The european energy challenge: East and West. Duke Univ. Pr.

Citación estilo Chicago

Hoffman, George Walter. The European Energy Challenge: East and West. Durham, N.C: Duke Univ. Pr, 1985.

Cita MLA

Hoffman, George Walter. The European Energy Challenge: East and West. Duke Univ. Pr, 1985.