FAO. (1999). Water soil resources reports; N85: Soil fertility initiative for sub-Sahảan Africa. Rome: FAO.
शिकागो स्टाइल उद्धरणFAO. Water Soil Resources Reports; N85: Soil Fertility Initiative for Sub-Sahảan Africa. Rome: FAO, 1999.
एमएलए उद्धरणFAO. Water Soil Resources Reports; N85: Soil Fertility Initiative for Sub-Sahảan Africa. Rome: FAO, 1999.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.