Wouters J. —
Seguimiento de la matena organica en los suelos tropicales (Text in French),
p. 81-85. vol. 9 no 2
- Texto PDF
1984
Wouters J. —
Considerations in agricultural research with special reference to the use of fertilizers under tropical conditions (Text in French),
p. 26-28. vol. 2 no 1
- Texto PDF