Gurzadjan, G. A. (1969). Planetary nebulae: Rev. by the author, transl. and ed. by... with the assistance of C. M. Varsavsky and Z. Lerman. Gordon & Breach.
Chicago-Zitierstil (17. Ausg.)Gurzadjan, Grigor A. Planetary Nebulae: Rev. by the Author, Transl. and Ed. by... with the Assistance of C. M. Varsavsky and Z. Lerman. New York: Gordon & Breach, 1969.
MLA-Zitierstil (9. Ausg.)Gurzadjan, Grigor A. Planetary Nebulae: Rev. by the Author, Transl. and Ed. by... with the Assistance of C. M. Varsavsky and Z. Lerman. Gordon & Breach, 1969.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.