Gaya APA

Buurman, P., Swanson, C, P. (1980). Red soils in Indonesia . Wageningen: Wageningen: Centre for agricultural publishing and documentation; ì1980.

Gaya MLA

Buurman, P., Swanson, Carl, P.. "Red soils in Indonesia". Wageningen: Wageningen: Centre for agricultural publishing and documentation; ì1980, 1980. Text.