HERMANN, M.; COLE, M. University of Maine Recreational Trail Guide. Cartographic Perspectives, [S. l.], n. 49, p. 80, 2004. DOI: 10.14714/CP49.445. Disponível em: https://cartographicperspectives.org/index.php/journal/article/view/cp49-hermann-cole. Acesso em: 25 apr. 2026.