1 Subjects: “...;The Earth: natural history: general interest;Earth sciences;Environmental science, engineering...”

2 Subjects: “...::WNW The Earth: natural history: general interest...”

3 Subjects: “...Applied ecology;Conservation of the environment;The Earth: natural history: general interest...”

4 Subjects: “...spray history...”

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

6 “... comprehensive history of contaminant interpretation in wildlife and fish, the use of tissue residues...”