APA (7th ed.) Citation

Ahlgren, C. E., & Ahlgren, I. (2001). Lob Trees In The Wilderness: The Human and Natural History of the Boundary Waters. University of Minnesota Press.

Chicago Style (17th ed.) Citation

Ahlgren, C. E., and Isabel Ahlgren. Lob Trees In The Wilderness: The Human and Natural History of the Boundary Waters. Minneapolis: University of Minnesota Press, 2001.

MLA (8th ed.) Citation

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.