Cita APA (7th ed.)

Gangstad, E. O. (1978). Weed Control methods for River basin management. Fla, CRC.

Cita Chicago (17th ed.)

Gangstad, Edward O. Weed Control Methods for River Basin Management. West Palm Beach: Fla, CRC, 1978.

Cita MLA (9th ed.)

Gangstad, Edward O. Weed Control Methods for River Basin Management. Fla, CRC, 1978.