एपीए उद्धरण

Ospina, S., Rusch, G. M., Pezo Quevedo, D., Casanoves, F., & Sinclair, F. L. (2013). More Stable Productivity of Semi Natural Grasslands than Sown Pastures in a Seasonally Dry Climate.

शिकागो स्टाइल उद्धरण

Ospina, Sonia, Graciela M. Rusch, Danilo Pezo Quevedo, Fernando Casanoves, और Fergus L. Sinclair. More Stable Productivity of Semi Natural Grasslands Than Sown Pastures in a Seasonally Dry Climate. 2013.

एमएलए उद्धरण

Ospina, Sonia, et al. More Stable Productivity of Semi Natural Grasslands Than Sown Pastures in a Seasonally Dry Climate. 2013.