Cita APA (7th ed.)
ebrary, Inc, & Perry, J. T. (2010). Energy prices: Supply, demand or speculation? Nova Science Publishers.
Cita Chicago (17th ed.)
ebrary, Inc, i John T. Perry. Energy Prices: Supply, Demand or Speculation? New York: Nova Science Publishers, 2010.
Cita MLA (9th ed.)
ebrary, Inc, i John T. Perry. Energy Prices: Supply, Demand or Speculation? Nova Science Publishers, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.