APA (7th ed.) Citation

Kopal, Z., & Kahn, F. D. (1981). Investigating the universe: Papers presented to Zdenek Kopal on the occasion of his retirement, September 1981. D. Reidel.

Chicago Style (17th ed.) Citation

Kopal, Zdeněk, and F. D. Kahn. Investigating the Universe: Papers Presented to Zdenek Kopal on the Occasion of His Retirement, September 1981. Dordrecht, Holland ; Boston: D. Reidel, 1981.

MLA (9th ed.) Citation

Kopal, Zdeněk, and F. D. Kahn. Investigating the Universe: Papers Presented to Zdenek Kopal on the Occasion of His Retirement, September 1981. D. Reidel, 1981.