Gaya APA

Buurman, P., Swanson, C, P. (NULL). 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, NULL. Text.