Holocene environmental changes in the alpine zone, northern San Juan Mountains, Colorado: Evidence from bog stratigraphy and palynology
(1975).
Holocene environmental changes in the alpine zone, northern San Juan Mountains, Colorado: Evidence from bog stratigraphy and palynology
.
Quaternary Research,
5
(2)
, 173-197.
http://dx.doi.org/10.1016/0033-5894(75)90022-8