Template:Ref-Owen1834
From Embryology
Owen R. [[Paper - On the generation of the marsupial animals, with a description of the impregnated uterus of the kangaroo|On the Generation of the Marsupial Animals, with a Description of the Impregnated Uterus of the Kangaroo]]. (1834) Phil. Trans. Royal Soc. Lond. 124: 333-364.