Biostratigraphy and lower permian fusulinidac of the upper delta river area, east-central Alaska range Ronald G. Petocz.
Petocz, Ronald G.
Biostratigraphy and lower permian fusulinidac of the upper delta river area, east-central Alaska range Ronald G. Petocz. - Colorado Geological Society of America 1970 - viii, 94p. 23cm.
8137-2130.
Plants Fossil Geology, stratigraphic.
560.17 / P44B
Biostratigraphy and lower permian fusulinidac of the upper delta river area, east-central Alaska range Ronald G. Petocz. - Colorado Geological Society of America 1970 - viii, 94p. 23cm.
8137-2130.
Plants Fossil Geology, stratigraphic.
560.17 / P44B