Goldberg, L. (2009). Patterns of nectar production and composition, and morphology of floral nectaries in Helicteres guazumifolia and Helicteres baruensis (Sterculiaceae): Two sympatric species from the Costa Rican tropical dry forest. Universidad de Costa Rica.
Citación estilo ChicagoGoldberg, Loretta. Patterns of Nectar Production and Composition, and Morphology of Floral Nectaries in Helicteres Guazumifolia and Helicteres Baruensis (Sterculiaceae): Two Sympatric Species From the Costa Rican Tropical Dry Forest. Universidad de Costa Rica, 2009.
Cita MLAGoldberg, Loretta. Patterns of Nectar Production and Composition, and Morphology of Floral Nectaries in Helicteres Guazumifolia and Helicteres Baruensis (Sterculiaceae): Two Sympatric Species From the Costa Rican Tropical Dry Forest. Universidad de Costa Rica, 2009.