APA (7th ed.) Citation
Alavéz López, S. (2014). Effect of poró Erythrina poeppigiana (Walpers) O.F. Cook, planted at four spacings on the production maize Zea mays, in an alley cropping system. Universidad de Costa Rica, San José (Costa Rica) CATIE, Turrialba (Costa Rica).
Chicago Style (17th ed.) Citation
Alavéz López, S. Effect of Poró Erythrina Poeppigiana (Walpers) O.F. Cook, Planted at Four Spacings on the Production Maize Zea Mays, in an Alley Cropping System. Universidad de Costa Rica, San José (Costa Rica) CATIE, Turrialba (Costa Rica), 2014.
MLA (9th ed.) Citation
Alavéz López, S. Effect of Poró Erythrina Poeppigiana (Walpers) O.F. Cook, Planted at Four Spacings on the Production Maize Zea Mays, in an Alley Cropping System. Universidad de Costa Rica, San José (Costa Rica) CATIE, Turrialba (Costa Rica), 2014.
Warning: These citations may not always be 100% accurate.