APA (7th ed.) Citation

Roy, A. E., & Clarke, D. (1977). Astronomy: Structure of the universe. A. Hilger ; Crane Russak.

Chicago Style (17th ed.) Citation

Roy, A. E., and D. Clarke. Astronomy: Structure of the Universe. Bristol : New York: A. Hilger ; Crane Russak, 1977.

MLA (9th ed.) Citation

Roy, A. E., and D. Clarke. Astronomy: Structure of the Universe. A. Hilger ; Crane Russak, 1977.