Butt, A. A. (1966). Late oligocene foraminifera from Escornebeou, SW France. Schotanus & Jens.
Chicagoスタイル(17版)引用形式Butt, Aftab Ahmad. Late Oligocene Foraminifera from Escornebeou, SW France. Utrecht: Schotanus & Jens, 1966.
MLA(8版)引用形式Butt, Aftab Ahmad. Late Oligocene Foraminifera from Escornebeou, SW France. Schotanus & Jens, 1966.
警告: この引用は必ずしも正確ではありません.