by Robert M. Kosanke
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Palynological studies of lower Pennsylva...
Classification of the Pennsylvanian stra...
Palynological studies of Middle Pennsylv...
Palynological analyses of upper Pennsylv...
Palynology of selected coal beds in the ...
Plant microfossils in correlation of coa...
Paekche ŭi sŏnggwak kwa kŏnchʻuk
Textbook of pollen analysis
Pollen grains
Travels of airborne pollen
The microbiology of the atmosphere
Pollen morphology and plant taxonomy