Cita APA

 Beggs, C. (2009).  Energy: Management, supply and conservation.  Butterworth-Heinemann.

Chicago Style Citation

 Beggs, Clive.  Energy: Management, Supply and Conservation.  Butterworth-Heinemann, 2009.

Cita MLA

 Beggs, Clive.  Energy: Management, Supply and Conservation.  Butterworth-Heinemann, 2009.

Atenció: Aquestes cites poden no estar 100% correctes.