(1982). T. 25, № 1-2; Acta Geologica. 1982.
Chicago Style aipamenaT. 25, № 1-2; Acta Geologica. 1982, 1982.
MLA aipamenaT. 25, № 1-2; Acta Geologica. 1982, 1982.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
(1982). T. 25, № 1-2; Acta Geologica. 1982.
Chicago Style aipamenaT. 25, № 1-2; Acta Geologica. 1982, 1982.
MLA aipamenaT. 25, № 1-2; Acta Geologica. 1982, 1982.