1 Subjects: “...Social history...”

2 Subjects: “...Development economics and emerging economies;Applied ecology;The Earth: natural history: general...”

3 Subjects: “...landscape history...”

4 Subjects: “...The Earth: natural history general / bicssc...”

5 Subjects: “...economic history...”

6 Subjects: “...economic history...”

7 Subjects: “...history of monasticism...”

8 Subjects: “...History / bicssc...”

9 Subjects: “...landscape history...”

10 Subjects: “...natural history collections...”

11 Subjects: “...wetland management history...”

12 Subjects: “...natural history collections...”

13 Subjects: “...History of engineering and technology / bicssc...”

14 Subjects: “...History of engineering and technology / bicssc...”

15 Subjects: “...History of engineering and technology / bicssc...”

16 Subjects: “...History of engineering and technology / bicssc...”

17 Subjects: “...History of engineering and technology / bicssc...”

18 “..., history, law, economics and philosophy rest are called into question.

The Anthropocene...”

19 “... of the knowledge of environmental history to conscious and efficient environment conservation and management...”

20