McLeod, J. H. <br/><br/>
A Review of the biological control attempts against insects and weeds in Canada / 
J. H. McLeod and H. C. Coppel. 
 - Farnham Royal, Eng. :  Commonwealth Agricultural Bureaux,  1962. 
 - xi, 216 p. :  ill.;  26 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/>Pt. 1.  Biological control of pests of crops fruit trees, ornamentals, and weeds in Canada up to 1959 /  Biological control of forest insects, 1910-1958 / 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Insects.<br/>Insects control.<br/>Herbicides.<br/>Insect pests--Control.<br/>Insects.<br/>Herbicides.
<br/><br/><label>Dewey Class. No.: </label>595.7  / MCR 1962 
<br/><br/><label>National Library of Medicine Call No.: </label>W1  / TE135I no.2 1962