एपीए उद्धरण

IRRI. (1979). Report of the cropping systems working group. Philippines: IRRI.

शिकागो स्टाइल उद्धरण

IRRI. Report of the Cropping Systems Working Group. Philippines: IRRI, 1979.

एमएलए उद्धरण

IRRI. Report of the Cropping Systems Working Group. Philippines: IRRI, 1979.