Cita APA (7th ed.)

Bidwell, S. (1977). The Encyclopedia of land warfare in the 20th century. Spring Books.

Cita Chicago (17th ed.)

Bidwell, Shelford. The Encyclopedia of Land Warfare in the 20th Century. London: Spring Books, 1977.

Cita MLA (9th ed.)

Bidwell, Shelford. The Encyclopedia of Land Warfare in the 20th Century. Spring Books, 1977.