Clapp, R. B./Sibley, F. C. 1971. Notes on the vascular flora and terrestrial vertebrates of Caroline Atoll, Southern Line Islands. Atoll Research Bulletin No. 145. Smithsonian Institution, Washington. 18 pp.
Online details: http://www.sil.si.edu/digitalcollections/atollresearchbulletin/issues/00145.pdf