Papua New Guinea. Department of Primary Industry. (1976). Pyrethrum. Department of Primary Industry.
Citazione stile Chigago Style (17a edizione)Papua New Guinea. Department of Primary Industry. Pyrethrum. Port Moresby: Department of Primary Industry, 1976.
Citatione MLA (9a ed.)Papua New Guinea. Department of Primary Industry. Pyrethrum. Department of Primary Industry, 1976.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.