MLA

Cretì, Anna, and A Creti. The Economics of Natural Gas Storage. Springer Berlin Heidelberg, 2009.

APA

Cretì, A., & Creti, A. (2009). The Economics of Natural Gas Storage. Springer Berlin Heidelberg.

Chicago

Cretì, Anna, and A Creti. The Economics of Natural Gas Storage. : Springer Berlin Heidelberg, 2009.