Whistler, W. A. (1988). Checklist of the weed flora of western Polynesia: An annotated list of the weed species of Samoa,Tonga,Niue and Wallis and Futuna,along with the earliest dates of collection and the local names. South Pacific Commission.
Chicago-referens (17:e uppl.)Whistler, W. Arthur. Checklist of the Weed Flora of Western Polynesia: An Annotated List of the Weed Species of Samoa,Tonga,Niue and Wallis and Futuna,along with the Earliest Dates of Collection and the Local Names. Noumea,New Caledonia: South Pacific Commission, 1988.
MLA-referens (9:e uppl.)Whistler, W. Arthur. Checklist of the Weed Flora of Western Polynesia: An Annotated List of the Weed Species of Samoa,Tonga,Niue and Wallis and Futuna,along with the Earliest Dates of Collection and the Local Names. South Pacific Commission, 1988.