एपीए उद्धरण

Mila Medina Ramos. (1977). International bibliography on cropping systems 1975. Manila: IRRI.

शिकागो स्टाइल उद्धरण

Mila Medina Ramos. International Bibliography On Cropping Systems 1975. Manila: IRRI, 1977.

एमएलए उद्धरण

Mila Medina Ramos. International Bibliography On Cropping Systems 1975. Manila: IRRI, 1977.