REMOVE

1. sky
2. trees
3. doors
4. barns
5. soil
6. farms

WHAT

1. banks (landforms) (1)
2. birds (animals) (1)
3. black-and-white film (1)
4. buildings (structures) (1)
5. exterior views (1)
6. farmhouses (1)
7. farmyards (1)
8. fences (1)
9. fields (land) (1)
10. forests (plant communitie … (1)
11. landscapes (representatio … (1)
12. plants (1)
13. porches (1)
14. roads (1)
15. sidewalks (1)
16. stairs (1)
17. utility poles (1)
18. Visual Works (hierarchy n … (1)
19. windows (1)
20. yards (areas) (1)

WHO

1. Campbell, Sandra L. Still (1)
2. Sandra L. Still Campbell; … (1)

WHEN

1. 1961 (1)
2. after 1961 (1)