APA (7th ed.) Citation

(1956). New horizons in astronomy. Smithsonian Institution.

Chicago Style (17th ed.) Citation

New Horizons in Astronomy. Washington, D.C: Smithsonian Institution, 1956.

MLA (9th ed.) Citation

New Horizons in Astronomy. Smithsonian Institution, 1956.

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