Atwal,A S, & Balraj singh. (1990). Pest population and assessment of crop losses. ICAR.
Stile di citazione ChicagoAtwal,A S, e Balraj singh. Pest Population and Assessment of Crop Losses. New Delhi: ICAR, 1990.
Citazione MLAAtwal,A S, e Balraj singh. Pest Population and Assessment of Crop Losses. ICAR, 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.