Poulsen, V. (1964). Contribution to the lower and middle cambrian paleontology and stratigraphy of Northwest Greenland. Reitzel.
Chicago Style (17th ed.) CitationPoulsen, Valdemar. Contribution to the Lower and Middle Cambrian Paleontology and Stratigraphy of Northwest Greenland. København: Reitzel, 1964.
MLA (9th ed.) CitationPoulsen, Valdemar. Contribution to the Lower and Middle Cambrian Paleontology and Stratigraphy of Northwest Greenland. Reitzel, 1964.
Warning: These citations may not always be 100% accurate.