Bleeker, P., & Healy, P. A. (1980). Analytical data of Papua New Guinea soils. Commonwealth Scientific and Industrial Research Organization, Australia.
Citazione stile Chigago Style (17a edizione)Bleeker, P., e P. A. Healy. Analytical Data of Papua New Guinea Soils. Melbourne: Commonwealth Scientific and Industrial Research Organization, Australia, 1980.
Citatione MLA (8a ed.)Bleeker, P., e P. A. Healy. Analytical Data of Papua New Guinea Soils. Commonwealth Scientific and Industrial Research Organization, Australia, 1980.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.