Cita APA (7a ed.)

Smithers, A. J., & Hackett, J. W. (1989). Rude mechanicals: An account of tank maturity during the Second World War. Grafton Books.

Cita Chicago Style (17a ed.)

Smithers, Alan Jack., y John Wintrop Hackett. Rude Mechanicals: An Account of Tank Maturity During the Second World War. London, [etc.]: Grafton Books, 1989.

Cita MLA (9a ed.)

Smithers, Alan Jack., y John Wintrop Hackett. Rude Mechanicals: An Account of Tank Maturity During the Second World War. Grafton Books, 1989.