Boucard, A. (1894). Travels of a naturalist: A record of adventures, discoveries, history and custom of americans and indians, habits and description of animals, chiefly made in North America, California, Mexico, Central America, Columbia, Chili, etc., during the last forty two years. Pardy and son.
Chicago-viite (17. p.)Boucard, A. Travels of a Naturalist: A Record of Adventures, Discoveries, History and Custom of Americans and Indians, Habits and Description of Animals, Chiefly Made in North America, California, Mexico, Central America, Columbia, Chili, Etc., During the Last Forty Two Years. London, England, United Kingdom: Pardy and son, 1894.
MLA-viite (9. p.)Boucard, A. Travels of a Naturalist: A Record of Adventures, Discoveries, History and Custom of Americans and Indians, Habits and Description of Animals, Chiefly Made in North America, California, Mexico, Central America, Columbia, Chili, Etc., During the Last Forty Two Years. Pardy and son, 1894.