Citação norma APA
Ahlgren, C. E., & Ahlgren, I. (2001). Lob trees in the wilderness: The human and natural history of the boundary waters. University of Minnesota Press.
Citação norma Chicago
Ahlgren, C. E., and Isabel Ahlgren. Lob Trees in the Wilderness: The Human and Natural History of the Boundary Waters. Minneapolis, MN: University of Minnesota Press, 2001.
Citação norma MLA
Ahlgren, C. E., and Isabel Ahlgren. Lob Trees in the Wilderness: The Human and Natural History of the Boundary Waters. University of Minnesota Press, 2001.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.