APA (7th ed.) Citation

A E Roy., D. K. (2003). Astronomy. Institute of Physics.

Chicago Style (17th ed.) Citation

A E Roy., D Klarke. Astronomy. Institute of Physics, 2003.

MLA (8th ed.) Citation

A E Roy., D Klarke. Astronomy. Institute of Physics, 2003.

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