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Lua MLA (9ú heag.)Abrahamovich, Alberto H., et al. DISTRIBUTIONAL PATTERNS OF THE NEOTROPICAL AND ANDEAN SPECIES OF THE GENUS BOMBUS (HYMENOPTERA: APIDAE). Instituto de Ecología, A.C, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
