Roy, A. E., & Clarke, D. (1977). Astronomy: Structure of the universe. Adam Hilger.
Chicago Style (17th ed.) CitationRoy, A. E., and David Clarke. Astronomy: Structure of the Universe. Bristol [Eng.]: Adam Hilger, 1977.
MLA (9th ed.) CitationRoy, A. E., and David Clarke. Astronomy: Structure of the Universe. Adam Hilger, 1977.
Warning: These citations may not always be 100% accurate.