APA Citation

Grego, P. (2017). Venus and Mercury, and How to Observe Them. Springer.

Chicago Style Citation

Grego, Peter. Venus and Mercury, and How to Observe Them. Springer, 2017.

MLA Citation

Grego, Peter. Venus and Mercury, and How to Observe Them. Springer, 2017.

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