91. Ancient types of man [by] Arthur Keith Publication: Bethesda, MD : U.S. National Library of Medicine, National Institutes of Health, Health & Human Services, 2009 Subject(s): BooksBiological EvolutionHistory, AncientPaleontology
92. [Darwin's transmission of inherited traits] Publication: Bethesda, MD : U.S. National Library of Medicine, National Institutes of Health, Health & Human Services, 2009 Subject(s): Biological Evolution