Sporological Analysis of Some Coal and Carbonaceus Shales from Barren Measure Stage (lower Gondawa) of India
Sporological Analysis of Some Coal and Carbonaceus Shales from Barren Measure Stage (lower Gondawa) of India - Rachi : Catholic Press, 1965. - lám ; 18 cm.
The palaeobotanist, vol.13, nº2, 1964