Cita APA (7a ed.)
International Multidisciplinary Scientific GeoConference SGEM 2019 Albena, Bulharsko. (2019). SGEM 2019. 19th International Multidisciplinary Scientific GeoConference. Volume 19. Energy and Clean Technologies: Conference proceedings. Albena, Bulgaria, 30 June - 6 July 2019 (1. vyd.). STEF 92 Technology.
Cita Chicago Style (17a ed.)
International Multidisciplinary Scientific GeoConference SGEM 2019 Albena, Bulharsko. SGEM 2019. 19th International Multidisciplinary Scientific GeoConference. Volume 19. Energy and Clean Technologies: Conference Proceedings. Albena, Bulgaria, 30 June - 6 July 2019. 1. vyd. Sofia: STEF 92 Technology, 2019.
Cita MLA (9a ed.)
International Multidisciplinary Scientific GeoConference SGEM 2019 Albena, Bulharsko. SGEM 2019. 19th International Multidisciplinary Scientific GeoConference. Volume 19. Energy and Clean Technologies: Conference Proceedings. Albena, Bulgaria, 30 June - 6 July 2019. 1. vyd. STEF 92 Technology, 2019.
Precaución: Estas citas no son 100% exactas.