Harper, D. A. T. (1989). Brachiopods from the upper Ardmillan succession (Ordovician) of the Girvan District, Scotland.
Chicago-Zitierstil (17. Ausg.)Harper, David A. T. Brachiopods from the Upper Ardmillan Succession (Ordovician) of the Girvan District, Scotland. London, 1989.
MLA-Zitierstil (9. Ausg.)Harper, David A. T. Brachiopods from the Upper Ardmillan Succession (Ordovician) of the Girvan District, Scotland. 1989.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.