APA (7th ed.) Citation

Blalock, G. C. 1. (1947). Direct-current machinery. McGraw-Hill.

Chicago Style (17th ed.) Citation

Blalock, Grover Cleveland 1884. Direct-current Machinery. New York: McGraw-Hill, 1947.

MLA (9th ed.) Citation

Blalock, Grover Cleveland 1884. Direct-current Machinery. McGraw-Hill, 1947.