The report of the Soil Conservation Committee

[Khartoum] : McCorquodale, 1944.
Umfang/Format: 174 p., [6] folded leaves of plates : ill., maps ; 25 cm.

Runoff agriculture : a case study about the Yemeni highlands

von Eger, Helmut
Jemen-Studien ; Bd. 7
Wiesbaden : L. Reichert, 1987.
Umfang/Format: xvi, 238 p. : ill., maps ; 28 cm.

Taking the waters : soil and water conservation among settling Beja nomads in Eastern Sudan

von Van Dijk, Johan Aad
Research series / African Studies Centre Leiden 4
Leiden : African Studies Centre, 1995.
Umfang/Format: XVI, 324 p. : ill., maps ; 24 cm.

Anthropogenic soils

von Howard, Jeffrey L.
Progress in soil science
Cham, Switzerland : Springer, [2017].
Umfang/Format: xiii, 231 pages : illustrations, charts ; 24 cm.