APA (7th ed.) Citation

Langley, S. P. (1887). The new astronomy. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Langley, S. P. The New Astronomy. Boston, New York: Houghton Mifflin, 1887.

MLA (9th ed.) Citation

Langley, S. P. The New Astronomy. Houghton Mifflin, 1887.

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