Notes on the breeding season and young of Polyodon spathulaPublished in Journal of The Washington Academy of Sciences, in 1911, in volume 1, pages 280-282The genus Annona: the derivation of its name and its taxonomic subdivisionsPublished in Journal of The Washington Academy of Sciences, in 1911, in volume 1, issue 4, pages 118-120
The genus Annona: the derivation of its name and its taxonomic subdivisionsPublished in Journal of The Washington Academy of Sciences, in 1911, in volume 1, issue 4, pages 118-120