1) A basis for rating the productivity of soils on the plains of eastern Colorado

Author
Brown, Lindsey A
Series
Technical bul volume 25
Publisher
Colorado State College, Colorado Experiment Station
Pub. Date
1938.
Language
English

2) Color photography in soil studies

Author
Brown, Lindsey A
Series
Technical bul volume 26
Publisher
Colorado Experiment Station, Colorado State College
Pub. Date
1939.
Language
English