APA (7th ed.) Citation

Harrington, D. (1932). Rock-dust does stop or limit mine explosions. [publisher not identified].

Chicago Style (17th ed.) Citation

Harrington, D. Rock-dust Does Stop or Limit Mine Explosions. Washington, D.C.: [publisher not identified], 1932.

MLA (9th ed.) Citation

Harrington, D. Rock-dust Does Stop or Limit Mine Explosions. [publisher not identified], 1932.