Medrano, E. M. (1979). The effects of tree age and within tree position on the pulping characteristics of Benguet pine (pinus kesiya Royle ex Gord.) [microform]. Photoduplication Service. University of the Philippines Library.
Παραπομπή σε μορφή Chicago (17η εκδ.)Medrano, Edgar M. The Effects of Tree Age and Within Tree Position on the Pulping Characteristics of Benguet Pine (pinus Kesiya Royle Ex Gord.) [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1979.
Παραπομπή σε μορφή MLA (9th εκδ.)Medrano, Edgar M. The Effects of Tree Age and Within Tree Position on the Pulping Characteristics of Benguet Pine (pinus Kesiya Royle Ex Gord.) [microform]. Photoduplication Service. University of the Philippines Library, 1979.
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