APA (7th ed.) Citation

Delaunay, C. E. (2015). Cours elementaire d' astronomie.

Chicago Style (17th ed.) Citation

Delaunay, Charles Eugene. Cours Elementaire D' Astronomie. 2015.

MLA (9th ed.) Citation

Delaunay, Charles Eugene. Cours Elementaire D' Astronomie. 2015.

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