APA Style

Soils, W, [, L, A, I, A, U. (). Proceedings workshop ..., Bogor 3-4 January and 14 February 1990 . Bogor: .

MLA Style

Soils, WORKSHOP, [on], Low-Input, Agriculture, In, Acid, Upland. "Proceedings workshop ..., Bogor 3-4 January and 14 February 1990". Bogor: , . Electronic resources.