Singh Inderbir, Pal G.P, . (2002). Human Embryology. London: Macmillan and Company Ltd.
Singh Inderbir, Pal G.P, . 2002. Human Embryology. London: Macmillan and Company Ltd.
Singh Inderbir, Pal G.P, . Human Embryology. London: Macmillan and Company Ltd. 2002.