G.O. Otegbeye. “PROVENANCE - SITE INTERACTION IN <em>PINUS</em> <em>CARIBAEA</Em> AND ITS IMPLICATIONS FOR GENETIC IMPROVEMENT AND AFFORESTATION PROGRAMMES IN THE NIGERIAN SAVANNA”. Journal of Tropical Forest Science (JTFS), vol. 8, no. 2, Dec. 1995, pp. 147-54, https://jtfs.frim.gov.my/jtfs/article/view/1727.