एपीए उद्धरण

(1991). Agricultural intensification and environment in tropical areas: Seminar; Brussels, 5-6 June 1990. Brussels: CTA.

शिकागो स्टाइल उद्धरण

Agricultural Intensification and Environment in Tropical Areas: Seminar; Brussels, 5-6 June 1990. Brussels: CTA, 1991.

एमएलए उद्धरण

Agricultural Intensification and Environment in Tropical Areas: Seminar; Brussels, 5-6 June 1990. Brussels: CTA, 1991.