Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
COOPER M. R.,"Upper Cretaceous (Turonian-Coniacian) ammonites from Sao Nicolau, Angola",Annals of the South African Museum,,,2003,110,,89-146,https://cir.nii.ac.jp/crid/1573950400771931904,