1. Letter from John E. Bruno to Marshall W. Nirenberg and J. Heinrich Matthaei Publication: Produced: 23 March 1962 Subject(s): AlbinismPigmentation Archival Collection: The Marshall W. Nirenberg Papers (Profiles in Science)
2. Birds, gradation of characters Publication: Bethesda, MD : U.S. National Library of Medicine, National Institutes of Health, Health & Human Services, 2009 Subject(s): Feathers -- anatomy & histologyPigmentationGalliformes
3. Birds, the young like the adult males Publication: Bethesda, MD : U.S. National Library of Medicine, National Institutes of Health, Health & Human Services, 2009 Subject(s): Anseriformes -- anatomy & histologySex CharacteristicsPigmentation