3
|
|
Soil conservation -- Africa, West. / https://id.loc.gov/authorities/subjects/sh85124329 https://id.loc.gov/authorities/subjects/sh85001688-781 : Campbell, Michael O'Neal,
|
2013
|
1
|
4
|
|
|
|
1
|
5
|
|
Soil conservation -- Government policy -- United States -- Congresses. / https://id.loc.gov/authorities/subjects/sh2010113979 https://id.loc.gov/authorities/subjects/sh99001533
|
1985
|
1
|
6
|
|
Soil conservation -- Illinois -- History -- 20th century. / https://id.loc.gov/authorities/subjects/sh85124329 https://id.loc.gov/authorities/names/n79053746-781 https://id.loc.gov/authorities/subjects/sh2002006165 : Rippelmeyer, Kay,
|
2015
|
1
|
7
|
|
Soil conservation -- India. / https://id.loc.gov/authorities/subjects/sh2010113980
|
2015
|
1
|
8
|
|
Soil conservation -- Ohio -- History -- 20th century. / https://id.loc.gov/authorities/subjects/sh85124329 https://id.loc.gov/authorities/names/n79049197-781 https://id.loc.gov/authorities/subjects/sh2002006165 : Abbott, Anneliese,
|
2021
|
1
|
9
|
|
|
|
1
|
10
|
|
|
|
1
|
11
|
|
Soil conservation -- Social aspects. / https://id.loc.gov/authorities/subjects/sh85124329 https://id.loc.gov/authorities/subjects/sh00002758
|
2010
|
1
|
12
|
|
Soil conservation -- Tropics. / https://id.loc.gov/authorities/subjects/sh85124329 https://id.loc.gov/authorities/subjects/sh85138064-781 : Lal, R.
|
1995
|
1
|
14
|
|
Soil conservation -- United States -- Handbooks, manuals, etc. / https://id.loc.gov/authorities/subjects/sh85124332 https://id.loc.gov/authorities/subjects/sh99001300
|
1979
|
1
|
15
|
|
Soil conservation -- United States -- Periodicals. / https://id.loc.gov/authorities/subjects/sh85124332 https://id.loc.gov/authorities/subjects/sh99001647
|
19--
|
1
|