Cita APA (7a ed.)
Annals of the University of Petrosani Mining Engineering. University of Petrosani.
Cita Chicago Style (17a ed.)
Annals of the University of Petrosani Mining Engineering. University of Petrosani.
Cita MLA (9a ed.)
Annals of the University of Petrosani Mining Engineering. University of Petrosani.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.