Leff, L. (2009). Freshwater Habitats (1–). Elsevier. https://doi.org/10.1016/B978-012373944-5.00282-0
Leff, Laura. 2009. “Freshwater Habitats”. Elsevier. https://doi.org/10.1016/B978-012373944-5.00282-0.
Leff, Laura. Freshwater Habitats. Elsevier, 1 Jan. 2009, https://doi.org/10.1016/B978-012373944-5.00282-0.