APA Citation

Roy, A. E., & Clarke, D. (1982). Astronomy: Principles and practice (2nd.). Bristol: Adam hilger.

Chicago Style Citation

Roy, Archie E., and David Clarke. Astronomy: Principles and Practice. 2nd. Bristol: Adam hilger, 1982.

MLA Citation

Roy, Archie E., and David Clarke. Astronomy: Principles and Practice. 2nd. Bristol: Adam hilger, 1982.

Warning: These citations may not always be 100% accurate.