Gurmel Singh. (1990). mannual of soil and water conseervation Practices. Oxford and IBH publishing.
Chicago Edition CitationGurmel Singh. Mannual of Soil and Water Conseervation Practices. New Delhi: Oxford and IBH publishing, 1990.
ציטוט MLAGurmel Singh. Mannual of Soil and Water Conseervation Practices. Oxford and IBH publishing, 1990.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.