APA (7th ed.) Citation

Steffensen, J. F. (1956). On the restricted problem of three bodies. Munksgaard in Komm.

Chicago Style (17th ed.) Citation

Steffensen, Johan Frederik. On the Restricted Problem of Three Bodies. København: Munksgaard in Komm, 1956.

MLA (9th ed.) Citation

Steffensen, Johan Frederik. On the Restricted Problem of Three Bodies. Munksgaard in Komm, 1956.

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