Global Utility Issues. ABS Energy Research.
Chicago Style (17. basım) AtıfGlobal Utility Issues. ABS Energy Research.
MLA (9th ed.) AtıfGlobal Utility Issues. ABS Energy Research.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..
Global Utility Issues. ABS Energy Research.
Chicago Style (17. basım) AtıfGlobal Utility Issues. ABS Energy Research.
MLA (9th ed.) AtıfGlobal Utility Issues. ABS Energy Research.