Não informado. (1948). Frontiers of Plant Science. Connecticut Agricultural Experiment Station.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Frontiers of Plant Science. New Haven, Conn: Connecticut Agricultural Experiment Station, 1948.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Frontiers of Plant Science. Connecticut Agricultural Experiment Station, 1948.
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