APA (7th ed.) Citation

International Astronomical Union. Symposium Basel, Switzerland, International Astronomical Union, Becker, W., & Contopoulos, G. (1970). The spiral structure of our galaxy: International Astronomical Union Symposium No. 38 held in Basel, Switzerland, August 29-September 4, 1969. D. Reidel Publ. Co..

Chicago Style (17th ed.) Citation

International Astronomical Union. Symposium Basel, Switzerland, International Astronomical Union, W. Becker, and George Contopoulos. The Spiral Structure of Our Galaxy: International Astronomical Union Symposium No. 38 Held in Basel, Switzerland, August 29-September 4, 1969. Dordrecht, Holland: D. Reidel Publ. Co., 1970.

MLA (8th ed.) Citation

International Astronomical Union. Symposium Basel, Switzerland, et al. The Spiral Structure of Our Galaxy: International Astronomical Union Symposium No. 38 Held in Basel, Switzerland, August 29-September 4, 1969. D. Reidel Publ. Co., 1970.