Cita APA (7th ed.)
Flores, R. M. (2014). Coal and coalbed gas: Fueling the future. Elsevier.
Cita Chicago (17th ed.)
Flores, Romeo M. Coal and Coalbed Gas: Fueling the Future. Waltham, Massachusetts: Elsevier, 2014.
Cita MLA (9th ed.)
Flores, Romeo M. Coal and Coalbed Gas: Fueling the Future. Elsevier, 2014.
Atenció: Aquestes cites poden no estar 100% correctes.