Seitter W. C., Duerbeck H .W., & Tacke M. (1987). Lecture Notes in Physics; V. 310: Large-Scale Structures in the Universe Observational and Analytical Methods. Proceedings of a Workshop, Held at the Physikzentrum Band Honnef, Fed. Rep. of Germany, December 9-12, 1987. Berlin, Springer-Verlag, 1987.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিSeitter W. C., Duerbeck H .W., এবং Tacke M. Lecture Notes in Physics; V. 310: Large-Scale Structures in the Universe Observational and Analytical Methods. Proceedings of a Workshop, Held at the Physikzentrum Band Honnef, Fed. Rep. of Germany, December 9-12, 1987. Berlin, Springer-Verlag, 1987, 1987.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিSeitter W. C., et al. Lecture Notes in Physics; V. 310: Large-Scale Structures in the Universe Observational and Analytical Methods. Proceedings of a Workshop, Held at the Physikzentrum Band Honnef, Fed. Rep. of Germany, December 9-12, 1987. Berlin, Springer-Verlag, 1987, 1987.