The Bulletin of the North Carolina Department of Agriculture.

34

The Bulletin of the North Carolina Department of Agriculture.

35

The Bulletin of the North Carolina Department of Agriculture.

33

The Bulletin of the North Carolina Department of Agriculture.

27-28

Annual report of the Pennsylvania Department of Agriculture ...

20

Annual report of the Pennsylvania Department of Agriculture ...

21

Annual report of the Pennsylvania Department of Agriculture ...

11

Annual report of the Pennsylvania Department of Agriculture ...

12

The Bulletin of the North Carolina Department of Agriculture.

30

The Bulletin of the North Carolina Department of Agriculture.

37

The Bulletin of the North Carolina Department of Agriculture.

31

The Bulletin of the North Carolina Department of Agriculture.

29

The Bulletin of the North Carolina Department of Agriculture.

32

The Bulletin of the North Carolina Department of Agriculture.

38

Annual report of the State Board of Forestry /

Mode of access: Internet.