Blach R E Otheers (1 results)

1931, 1940. Insects, pamphlet. Canada Department of Agriculture, Div. of Entomology. Inclues European Spruce Sawfly, Hemlock Looper, Black headed Budworm, etc. 12cm zx 16.5cm with color plates (Before, during and after) in brown boards with cloth spine, no page count, about 56p.