APA (7th ed.) Citation

Troy Chemical Co. (1921). Save-the-Horse (trade-mark reg. U.S. Pat. Office): Book of directions (Sixteenth edition.). Troy Chemical Co..

Chicago Style (17th ed.) Citation

Troy Chemical Co. Save-the-Horse (trade-mark Reg. U.S. Pat. Office): Book of Directions. Sixteenth edition. Binghamton, N.Y.: Troy Chemical Co., 1921.

MLA (9th ed.) Citation

Troy Chemical Co. Save-the-Horse (trade-mark Reg. U.S. Pat. Office): Book of Directions. Sixteenth edition. Troy Chemical Co., 1921.