APA (7th ed.) Zitazioa
BHEL. (2012). Electrical engineering engineers trainees recruitment exam study guide. G.K.Publications.
Chicago Style (17th ed.) Zitazioa
BHEL. Electrical Engineering Engineers Trainees Recruitment Exam Study Guide. Noida: G.K.Publications, 2012.
MLA (9th ed.) Zitazioa
BHEL. Electrical Engineering Engineers Trainees Recruitment Exam Study Guide. G.K.Publications, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.