APA (7th ed.) Citation

Langworthy, C. F. (1903). Principles of horse feeding. Gov. Print. Office.

Chicago Style (17th ed.) Citation

Langworthy, Charles F. Principles of Horse Feeding. Washington: Gov. Print. Office, 1903.

MLA (9th ed.) Citation

Langworthy, Charles F. Principles of Horse Feeding. Gov. Print. Office, 1903.