APA (7th ed.) Citation

Grego, P. (2008). Venus and Mercury, and How to Observe Them. Springer Science+Business Media, LLC.

Chicago Style (17th ed.) Citation

Grego, Peter. Venus and Mercury, and How to Observe Them. New York, NY: Springer Science+Business Media, LLC, 2008.

MLA (8th ed.) Citation

Grego, Peter. Venus and Mercury, and How to Observe Them. Springer Science+Business Media, LLC, 2008.

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