APA (7th ed.) Citation

(1927). Questions and answers on Bureau of Mines approvals of electrical equipment. [publisher not identified].

Chicago Style (17th ed.) Citation

Questions and Answers on Bureau of Mines Approvals of Electrical Equipment. [Washington?]: [publisher not identified], 1927.

MLA (9th ed.) Citation

Questions and Answers on Bureau of Mines Approvals of Electrical Equipment. [publisher not identified], 1927.

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