APA aipamena

International Astronomical Union, Chebotarev, G. A., Kazimirchak-Polonskaia, E. I., & Marsden, B. G. (1972). The Motion, evolution of orbits, and origin of comets: Symposium no. 45, held in Leningrad, U.S.S.R., August 4-11, 1970. Reidel.

Chicago Style aipamena

International Astronomical Union, G. A. Chebotarev, E. I. Kazimirchak-Polonskaia, and B. G. Marsden. The Motion, Evolution of Orbits, and Origin of Comets: Symposium No. 45, Held in Leningrad, U.S.S.R., August 4-11, 1970. Dordrecht: Reidel, 1972.

MLA aipamena

International Astronomical Union, et al. The Motion, Evolution of Orbits, and Origin of Comets: Symposium No. 45, Held in Leningrad, U.S.S.R., August 4-11, 1970. Reidel, 1972.