APA (7th ed.) Citation

Alexander, F. (1959). The Christmast star. California Academy of Sciences.

Chicago Style (17th ed.) Citation

Alexander, F. The Christmast Star. California Academy of Sciences, 1959.

MLA (8th ed.) Citation

Alexander, F. The Christmast Star. California Academy of Sciences, 1959.

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