Davidson, John. <br/><br/>
Variation, association and inheritance of morphological and wood characters in an improvement programme for Eucalytus Deglupta Blume / 
by John Davidson. 
 - [Boroko, PNG :  Papua New Guinea Dept. of Forests],  c1972. 
 - xvii, 263 p. :  ill. 
<br/><br/> "This Thesis was submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy in the Australian National University" 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Eucalyptus.<br/>Forests and forestry--Papua New Guinea.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Papua New Guinea--Forests and forestry.<br/>Papua New Guinea--Trees.