PINEL, Harold W.; WALLIS, Clifford A. A Botanical Investigation in the Drumheller Area, Alberta. Blue Jay, [S. l.], v. 30, n. 3, 1972. DOI: 10.29173/bluejay3787. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/3787. Acesso em: 3 may. 2024.