Rationalization of Ploughing Operations for Drainage / 
Joint Committee on Forest Working Techniques and Training Of Forest Workers; drew up a Questionaire to collect information and photographs by E. H. Macmillen 
 - Geneva :  United Nations Publications,  1965 
 - 52 p. :  ill. ;  28 cm. 
<br/><br/> Joint Committee on Forest Working Techniques and Training of Forest Workers is a sub sidiary body of the United Nations - Economic Commission for Europe ; Food and Agriculture Organization of the United Nations and International Labour Organization 
<br/><br/><label>ISBN: </label> USD 0.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Forest conservation<br/>Forest management<br/>Forests and forestry
<br/><br/><label>Dewey Class. No.: </label>634.93