International Astronomical Union, International Astronomical Union. Commission 33, International Astronomical Union. Commission 34, & Burton, W. B. (1979). The Large-scale characteristics of the galaxy: Symposium No. 84 held in College Park, Maryland, U.S.A., 12-17 June 1978. D. Reidel Publ. Co..
Chicago-Zitierstil (17. Ausg.)International Astronomical Union, International Astronomical Union. Commission 33, International Astronomical Union. Commission 34, und William Butler Burton. The Large-scale Characteristics of the Galaxy: Symposium No. 84 Held in College Park, Maryland, U.S.A., 12-17 June 1978. Dordrecht-Holland ; Boston: D. Reidel Publ. Co., 1979.
MLA-Zitierstil (8. Ausg.)International Astronomical Union, et al. The Large-scale Characteristics of the Galaxy: Symposium No. 84 Held in College Park, Maryland, U.S.A., 12-17 June 1978. D. Reidel Publ. Co., 1979.