WARD, R. Control of weeds in drains. Proceedings of the New Zealand National Weeds Conference, [S. l.], v. 4, p. 22–24, 1951. DOI: 10.30843/nzpp.1951.4.7049. Disponível em: https://journal.nzpps.org/index.php/pnzwc/article/view/7049. Acesso em: 22 may. 2024.