Zangerl, R. (1971). Two toxochelyid sea turtles from the Landenian Sands of Erquelinnes <Hainaut>, of Belgium.
Chicago Style (17th ed.) CitationZangerl, Rainer. Two Toxochelyid Sea Turtles from the Landenian Sands of Erquelinnes <Hainaut>, of Belgium. 1971.
MLA (9th ed.) CitationZangerl, Rainer. Two Toxochelyid Sea Turtles from the Landenian Sands of Erquelinnes <Hainaut>, of Belgium. 1971.
Warning: These citations may not always be 100% accurate.