Society for the Protection of New Hampshire Forests, Quackenbos, J. D., & Gifford, J. C. (1901). Addresses given in the White Mountain region under the auspices of the Society for the Protection of New Hampshire Forests.
Chicago-referens (17:e uppl.)Society for the Protection of New Hampshire Forests, John D. Quackenbos, och John Clayton Gifford. Addresses Given in the White Mountain Region Under the Auspices of the Society for the Protection of New Hampshire Forests. [n.p, 1901.
MLA-referens (8:e uppl.)Society for the Protection of New Hampshire Forests, et al. Addresses Given in the White Mountain Region Under the Auspices of the Society for the Protection of New Hampshire Forests. 1901.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.