TY  - BOOK
AU  - Erdtman,G.
TI  - Pollen and spore morphology / plant morphology : gymnospermae, pteridophyta, bryophyta
PY  - 1972///-
CY  - New York
PB  - Hafner Publishing
KW  - Palynology
KW  - Pollen
KW  - Morphology
N1  - Corrected reprint of the 1957 ed., supplement omitted
ER  -