APA (7th ed.) Zitazioa
ebrary, Inc, & Cho, E. K. (2010). Natural gas markets and lessons learned. Nova Science Publishers.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, eta E. K. Cho. Natural Gas Markets and Lessons Learned. New York: Nova Science Publishers, 2010.
MLA (9th ed.) Zitazioa
ebrary, Inc, eta E. K. Cho. Natural Gas Markets and Lessons Learned. Nova Science Publishers, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.