APA (7th ed.) Citation

Holdsworth, D. (1977). Medicinal plants of Papua New Guinea. South Pacific Commission.

Chicago Style (17th ed.) Citation

Holdsworth, David. Medicinal Plants of Papua New Guinea. Noumea, New Caledonia: South Pacific Commission, 1977.

MLA (9th ed.) Citation

Holdsworth, David. Medicinal Plants of Papua New Guinea. South Pacific Commission, 1977.