Shrivastava & Shomwanshi 1976
Aus Offene Naturführer
Shrivastava, P. S. & Shomwanshi, K. P. S. 1976: Investigation on the extent of cross pollination and selfing and crossing technique in niger, (Guizotia abyssinica Cass.). In: Plant Breeding Abstracts. Bd. 46, S. 137.
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