For Gossypium
Bayer & Kubitzki In Kubitzki, K., and C. Bayer, eds. 2003. The families and genera of vascular plants. V. Flowering plants – Dicotyledons – Malvales, Capparales, and non-betalain Caryophyllales. Springer, Berlin. 418 pp.
Fryxell, P. A. 1992. A revised taxonomic interpretation of Gossypium L. (Malvaceae). Rheedea 2: 108–165.
Fryxell, P.A. 1969. A classification of the genus Gossypium. Taxon 18: 585-591.
Fryxell, P.A. 1976. A nomenclator of Gossypium: the botanical names of cotton. No. 1491. US Department of Agriculture, Agricultural Research Service.
Fryxell, P.A. 1979. The natural history of the cotton tribe (Malvaceae, Tribe Gossypieae). Texas A. & M. Press, College Station, TX. 285 pp.
Fryxell, P.A., and S.R. Hill. 2015f. Gossypium. In Flora of North America Editorial Committee. 2015. Flora of North America north of Mexico. Volume 6, Magnoliophyta: Cucurbitaceae to Droseraceae. Oxford Univ. Press, New York, NY. 468 pp.
Wendel, J.F., and C.E. Grover. 2015. Taxonomy and evolution of the cotton genus, Gossypium L. Cotton 57: 25-44.