APA (7th ed.) Citation

Marshall, K. L. (1927). Mine safety as affected by electrification. [publisher not identified].

Chicago Style (17th ed.) Citation

Marshall, K. L. Mine Safety as Affected by Electrification. Washington, D.C.: [publisher not identified], 1927.

MLA (9th ed.) Citation

Marshall, K. L. Mine Safety as Affected by Electrification. [publisher not identified], 1927.

Warning: These citations may not always be 100% accurate.