Columbia subject headings:
Harvard subject headings:
Ecological succession--Colorado--Pawnee National Grassland--Mathematical models.
Ecological succession--Colorado--Pawnee National Grassland--Statistical methods--Data processing.
Ecological succession--Colorado--Pawnee National Grassland.
Ecological succession--Mathematical models.
Ecological succession--Statistical methods--Data processing.
Grassland ecology--Colorado--Pawnee National Grassland--Mathematical models.
Grassland ecology--Colorado--Pawnee National Grassland--Statistical methods--Data processing.
Grassland ecology--Colorado--Pawnee National Grassland.
Princeton subject headings:
Ecological succession--Colorado--Pawnee National Grassland--Mathematical models.
Ecological succession--Colorado--Pawnee National Grassland--Statistical methods--Data processing.
Ecological succession--Mathematical models.
Ecological succession--Statistical methods--Data processing.
Grassland ecology--Colorado--Pawnee National Grassland--Mathematical models.
Grassland ecology--Colorado--Pawnee National Grassland--Statistical methods--Data processing.