An environmental and ecological study of the marshlands of Mesopotamia
1994
Agricultural land
Pakistan's soil resources
1993
Miam, Alim |
Mirza, Yasin Javed |
The conservation of Mount Kilimanjaro
1991
Newmark, William D. |
Interaction between agriculture and nature conservation in Poland
1992
Denisiuk, Z. |
Kalemba, A. |
Zajac, T. |
Ostrowska, A. |
Gawlinski, S. |
Sienkiewicz, J. |
Rejman-Czajkowska, M. |
Interaction between agriculture and environment in Hungary
1992
Fésüs, I. |
Márkus, F. |
Szabó, G. |
Tölgyesi, I. |
Varga, Z. |
Vermes, L. |
