VALLE, O. The problem of red clover seed production in Finland. Agricultural and Food Science, [S. l.], v. 29, n. 1, p. 177–184, 1957. DOI: 10.23986/afsci.71422. Disponível em: https://journal.fi/afs/article/view/71422. Acesso em: 9 may. 2024.