Orchard, M. J., & Forster, P. J. L. (1988). Permian conodont biostratigraphy of the Happer Ranch beds, near Kamloops, south-central British Columbia.
Chicago-Zitierstil (17. Ausg.)Orchard, Michael J., und P. J. L. Forster. Permian Conodont Biostratigraphy of the Happer Ranch Beds, Near Kamloops, South-central British Columbia. Ottawa, 1988.
MLA-Zitierstil (9. Ausg.)Orchard, Michael J., und P. J. L. Forster. Permian Conodont Biostratigraphy of the Happer Ranch Beds, Near Kamloops, South-central British Columbia. 1988.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.