Não informado. (1888). Bulletin of the North Carolina Agricultural Experiment Station. North Carolina State University of Raleigh.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Bulletin of the North Carolina Agricultural Experiment Station. Raleigh, NC: North Carolina State University of Raleigh, 1888.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Bulletin of the North Carolina Agricultural Experiment Station. North Carolina State University of Raleigh, 1888.
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