Gaya APA

Erenstein, O, C. (1999). The Economics Of Soil Conservation In Developing Countries : The Case Of Crop Residue Mulching . Wageningen: Wegeningen University.

Gaya MLA

Erenstein, Olaf, C.A.. "The Economics Of Soil Conservation In Developing Countries : The Case Of Crop Residue Mulching". Wageningen: Wegeningen University, 1999. .