Paul, D. K. (1972). Pilot plantations of quick-growing industrial tree species, Malaysia: A handbook of nursery practice for Pinus caribaea var. hondurensis and other conifers in West Malaysia. United Nations Development Programme, Food and Agriculture Organization of the United Nations.
Cita Chicago (17th ed.)Paul, D. K. Pilot Plantations of Quick-growing Industrial Tree Species, Malaysia: A Handbook of Nursery Practice for Pinus Caribaea Var. Hondurensis and Other Conifers in West Malaysia. Kuala Lumpur: United Nations Development Programme, Food and Agriculture Organization of the United Nations, 1972.
Cita MLA (8th ed.)Paul, D. K. Pilot Plantations of Quick-growing Industrial Tree Species, Malaysia: A Handbook of Nursery Practice for Pinus Caribaea Var. Hondurensis and Other Conifers in West Malaysia. United Nations Development Programme, Food and Agriculture Organization of the United Nations, 1972.