APA (7th ed.) Citation

Symposium in Applied Mathematics New York University, American Mathematical Society, United States. Office of Ordnance Research, Birkhoff, G., & Langer, R. E. (1959). Orbit theory. American Mathematical Society.

Chicago Style (17th ed.) Citation

Symposium in Applied Mathematics New York University, American Mathematical Society, United States. Office of Ordnance Research, Garrett Birkhoff, and Rudolph Ernest Langer. Orbit Theory. Providence: American Mathematical Society, 1959.

MLA (8th ed.) Citation

Symposium in Applied Mathematics New York University, et al. Orbit Theory. American Mathematical Society, 1959.