Cita APA (7th ed.)

Siskind, C. S. (1952). Direct current machinery. McGraw-Hill.

Cita Chicago (17th ed.)

Siskind, Charles Seymour. Direct Current Machinery. Nueva York: McGraw-Hill, 1952.

Cita MLA (9th ed.)

Siskind, Charles Seymour. Direct Current Machinery. McGraw-Hill, 1952.