एपीए उद्धरण

FAO. (1981). FAO argicultural services bulletin; N.46: Energy cropping versus food production. Rome: FAO.

शिकागो स्टाइल उद्धरण

FAO. FAO Argicultural Services Bulletin; N.46: Energy Cropping Versus Food Production. Rome: FAO, 1981.

एमएलए उद्धरण

FAO. FAO Argicultural Services Bulletin; N.46: Energy Cropping Versus Food Production. Rome: FAO, 1981.