APA (7th ed.) Citation

Roy, A. E., & Clarke, D. (1982). Astronomy (2nd edition.). Adam Hilger.

Chicago Style (17th ed.) Citation

Roy, A. E., and D. Clarke. Astronomy. 2nd edition. Bristol: Adam Hilger, 1982.

MLA (8th ed.) Citation

Roy, A. E., and D. Clarke. Astronomy. 2nd edition. Adam Hilger, 1982.

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