Não informado. (1974). Belmontia: Miscellaneous publications in botany. Agricultural University, Department of Plant Taxonomy.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Belmontia: Miscellaneous Publications in Botany. Wageningen, Holanda: Agricultural University, Department of Plant Taxonomy, 1974.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Belmontia: Miscellaneous Publications in Botany. Agricultural University, Department of Plant Taxonomy, 1974.
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