Ghildyal, B. P., & Gupta, R. P. (2002). Soil structure: Problems and management (Nil.). ICAR.
Dyfyniad Arddull ChicagoGhildyal, B P., and R P. Gupta. Soil Structure: Problems and Management. Nil. New Delhi: ICAR, 2002.
Dyfyniad MLAGhildyal, B P., and R P. Gupta. Soil Structure: Problems and Management. Nil. ICAR, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.