APA (7th ed.) Citation

Harrington, D. (1932). Safety progress in anthracite and bituminous coal fields. [publisher not identified].

Chicago Style (17th ed.) Citation

Harrington, D. Safety Progress in Anthracite and Bituminous Coal Fields. Washington, D.C.: [publisher not identified], 1932.

MLA (9th ed.) Citation

Harrington, D. Safety Progress in Anthracite and Bituminous Coal Fields. [publisher not identified], 1932.