Greaves, A. (1979). Descriptions of seed sources and collections for provenances of Pinus oocarpa. Commenwealth Forestry Institute, University of Oxford.
Chicago-referens (17:e uppl.)Greaves, A. Descriptions of Seed Sources and Collections for Provenances of Pinus Oocarpa. Commenwealth Forestry Institute, University of Oxford, 1979.
MLA-referens (9:e uppl.)Greaves, A. Descriptions of Seed Sources and Collections for Provenances of Pinus Oocarpa. Commenwealth Forestry Institute, University of Oxford, 1979.
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