एपीए उद्धरण

Salas, G. d. l. (1979). Zonification and the multiple use of soils in tropical America: Problems and perspectives.

शिकागो स्टाइल उद्धरण

Salas, Gonzalo de las. Zonification and the Multiple Use of Soils in Tropical America: Problems and Perspectives. 1979.

एमएलए उद्धरण

Salas, Gonzalo de las. Zonification and the Multiple Use of Soils in Tropical America: Problems and Perspectives. 1979.