एपीए उद्धरण

Coto-Cedeño, W. I. (2018). Ash Clouds, Fields of Sand. Volcanic Activity in Costa Rica and Its Impact on the Agriculture Sector, 1950–2017.

शिकागो स्टाइल उद्धरण

Coto-Cedeño, Wainer Ignacio. Ash Clouds, Fields of Sand. Volcanic Activity in Costa Rica and Its Impact On the Agriculture Sector, 1950–2017. 2018.

एमएलए उद्धरण

Coto-Cedeño, Wainer Ignacio. Ash Clouds, Fields of Sand. Volcanic Activity in Costa Rica and Its Impact On the Agriculture Sector, 1950–2017. 2018.