APA (7th ed.) Citation

Sayers, R. R. (1930). Connection between physical condition and liability to accidents of metal miners. [publisher not identified].

Chicago Style (17th ed.) Citation

Sayers, R. R. Connection Between Physical Condition and Liability to Accidents of Metal Miners. Washington, D.C.: [publisher not identified], 1930.

MLA (9th ed.) Citation

Sayers, R. R. Connection Between Physical Condition and Liability to Accidents of Metal Miners. [publisher not identified], 1930.