Ballantyne, J. W. (1894). Studies in Fœtal Pathology and Teratology: Allantoido-Angiopagous Twins—The Fœtus Amorphus Anideus. Trans Edinb Obstet Soc.
Čikaški stil citiranjaBallantyne, J. W. "Studies in Fœtal Pathology and Teratology: Allantoido-Angiopagous Twins—The Fœtus Amorphus Anideus." Trans Edinb Obstet Soc 1894.
MLA način citiranjaBallantyne, J. W. "Studies in Fœtal Pathology and Teratology: Allantoido-Angiopagous Twins—The Fœtus Amorphus Anideus." Trans Edinb Obstet Soc 1894.
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