North Carolina. Dept. of Agriculture & North Carolina Agricultural Experiment Station. (1897). The Bulletin of the Agricultural Experiment Station of North Carolina. North Carolina Dept. of Agriculture.
Chicago-referens (17:e uppl.)North Carolina. Dept. of Agriculture och North Carolina Agricultural Experiment Station. The Bulletin of the Agricultural Experiment Station of North Carolina. Raleigh, N.C.: North Carolina Dept. of Agriculture, 1897.
MLA-referens (8:e uppl.)North Carolina. Dept. of Agriculture och North Carolina Agricultural Experiment Station. The Bulletin of the Agricultural Experiment Station of North Carolina. North Carolina Dept. of Agriculture, 1897.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.