Symp. on structure,nomenclature and classification of pollen and spores.
Lucknow,Birbal Sahni Instt. of Palaeobotany
Symp. on structure,nomenclature and classification of pollen and spores. - Lucknow Birbal Sahni Tnstt. 1974 - 73
Botany
Botany
581.1662
Symp. on structure,nomenclature and classification of pollen and spores. - Lucknow Birbal Sahni Tnstt. 1974 - 73
Botany
Botany
581.1662