Poulsen, V. (1964). Contribution to the lower and middler cambrian paleontology and stratigraphy of Northwest Greenland. Luno.
Chicago-Zitierstil (17. Ausg.)Poulsen, Valdemar. Contribution to the Lower and Middler Cambrian Paleontology and Stratigraphy of Northwest Greenland. København: Luno, 1964.
MLA-Zitierstil (9. Ausg.)Poulsen, Valdemar. Contribution to the Lower and Middler Cambrian Paleontology and Stratigraphy of Northwest Greenland. Luno, 1964.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.