REMOVE

1. sky
2. soil
3. plants
4. hats
5. workers
6. 1969

WHAT

1. barns (1)
2. black-and-white film (1)
3. buildings (structures) (1)
4. clouds (1)
5. exterior views (1)
6. farmhouses (1)
7. farms (1)
8. fields (land) (1)
9. forests (plant communitie … (1)
10. groves (plant communities … (1)
11. hills (1)
12. landscapes (representatio … (1)
13. sheds (storage structures … (1)
14. trees (1)
15. Visual Works (hierarchy n … (1)

WHO

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

WHEN

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