1) Maintaining short-grass ranges

Author
Costello, David F
Series
Colorado farm victory program volume D-33
Pub. Date
[1942]

2) Poisonous plants on Colorado rangelands

Author
Leininger, Wayne C
Series
Service in action volume no. 6.100
Pub. Date
1989.

3) Range resources of the San Luis Valley

Author
Hanson, Herbert C
Series
Bulletin volume 335
Pub. Date
1929.