British Weed Control Council. (1958). Weed control handbook. Blackwell.
Cita Chicago (17th ed.)British Weed Control Council. Weed Control Handbook. Oxford: Blackwell, 1958.
Cita MLA (8th ed.)British Weed Control Council. Weed Control Handbook. Blackwell, 1958.
Atenció: Aquestes cites poden no estar 100% correctes.