TY  - BOOK
AU  - Erdtman,G
TI  - Pollen and Spore Morphology Plant Taxonamy: Gymnospermae Bryophyta
U1  - 582.04 
PY  - 1965///
CY  - Uppsala
PB  - Almoqvist Wiksell Stockholm
KW  - Pollen and Spore
ER  -