Živković, M., Živković, H., & Hripko, I. (2003). Utilization of solar energy during production of viscous oil from the Mihovljan oil field: Utilization of solar energy during production of viscous oil from the Mihovljan oil field. Nafta (Zagreb), p. 4.
Chicago stil citiranjaŽivković, Mihovil, Hrvoje Živković, and Ivica Hripko. "Utilization of solar energy during production of viscous oil from the Mihovljan oil field: Utilization of solar energy during production of viscous oil from the Mihovljan oil field." 2003: 4.
MLA stil citiranjaŽivković, Mihovil, Hrvoje Živković, and Ivica Hripko. "Utilization of solar energy during production of viscous oil from the Mihovljan oil field: Utilization of solar energy during production of viscous oil from the Mihovljan oil field." 2003: 4.