Papua New Guinea. Department of Primary Industry. (1976). Pyrethrum. Department of Primary Industry.
Chicago-referens (17:e uppl.)Papua New Guinea. Department of Primary Industry. Pyrethrum. Port Moresby: Department of Primary Industry, 1976.
MLA-referens (9:e uppl.)Papua New Guinea. Department of Primary Industry. Pyrethrum. Department of Primary Industry, 1976.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.