Southwest farm press. Penton Media.
Cita Chicago (17th ed.)Southwest Farm Press. New York, N.Y.: Penton Media.
Cita MLA (9th ed.)Southwest Farm Press. Penton Media.
Atenció: Aquestes cites poden no estar 100% correctes.
Southwest farm press. Penton Media.
Cita Chicago (17th ed.)Southwest Farm Press. New York, N.Y.: Penton Media.
Cita MLA (9th ed.)Southwest Farm Press. Penton Media.