Cita APA (7a ed.)

VanKeuren, R. (1973). Systems analysis in forage crops production and utilization. Crop Science Society of América.

Cita Chicago Style (17a ed.)

VanKeuren, R.W. Systems Analysis in Forage Crops Production and Utilization. Las Vegas: Crop Science Society of América, 1973.

Cita MLA (8a ed.)

VanKeuren, R.W. Systems Analysis in Forage Crops Production and Utilization. Crop Science Society of América, 1973.