00854nam a2200205Ia 4500001000700000003000500007005001700012008004100029100003100070245012800101260005800229300002100287500008100308502007000389504002900459650004000488650004500528650003400573650004100607133704BIBL20160527192542.0931028|1981||||ncua   ||b   ||||1||eng|d1 aLiegel, Leon Herman2Local10aSeasonal nutrition of 3- and 4- year old Pinus caribaea foxtails and normal -branched trees in Puerto RicocLeon H. Liegel.  aRaleigh, N.C.bNorth Carolina State Universityc1981.  avi, 140 p.bill.  aTypescript (photocopy) Ann Arborr,Mich., University Microfilm International.  aThesis (PhD.) --North Carolina State University at Raleigh, 1981.  aBibliography : p. 89-92. 0aPinus caribaeazPuerto Rico.2Local 0aForest and forestryzPuerto Rico.2Local 0aForest solilsxTropic.2Local 0aForest and forestryxTropics.2Local