SOME NEW EOCENE POLLEN OF THE OGWASHI-ASABA FORMATION, SOUTH-EASTERN NIGERIAJAN DU CHENE RE; ONYIKE MS; SOWUNMI MA et al.1978; REV. ESP. MICROPALEONTOL.; SPA; DA. 1978; VOL. 10; NO 2; PP. 285-322; BIBL. 2 P.; 12 ILL.Article

REFRACTORY CLAYS FROM THE OGWASHI ASABA FORMATION, SOUTH EAST NIGERIA = ARGILES REFRACTAIRES DE LA FORMATION OGWASHI ASABA SUD EST DU NIGERIAOGBUKAGU IN.1980; NIGER. FIELD; ISSN 0029-0076; NGA; DA. 1980; VOL. 45; NO 2-3; PP. 76-82; BIBL. 17 REF.Article