APA (7th ed.) Citation

Pickering, E. C. (1882). A Plan for Securing Observations of the Variable Stars. Wilson.

Chicago Style (17th ed.) Citation

Pickering, Edward Charles. A Plan for Securing Observations of the Variable Stars. Cambridge: Wilson, 1882.

MLA (9th ed.) Citation

Pickering, Edward Charles. A Plan for Securing Observations of the Variable Stars. Wilson, 1882.

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