Cita APA

Alvarado, A., Iturriaga, I., Smyth, J. T., Portuguez, E., & Ureña, J. M. (2008). Residual effect of phosphorus from fertilizer applied to potatoes in Andisols at Juan Viñas, Costa Rica.

Chicago Style Citation

Alvarado, Alfredo, Isabel Iturriaga, Jot T. Smyth, Edward Portuguez, i Juan M. Ureña. Residual Effect of Phosphorus From Fertilizer Applied to Potatoes in Andisols At Juan Viñas, Costa Rica. 2008.

Cita MLA

Alvarado, Alfredo, et al. Residual Effect of Phosphorus From Fertilizer Applied to Potatoes in Andisols At Juan Viñas, Costa Rica. 2008.