KAILA, A. Some observations on the occurrence of azotobacter in Finnish soils. Agricultural and Food Science, [S. l.], v. 26, n. 1, p. 40–49, 1954. DOI: 10.23986/afsci.71363. Disponível em: https://journal.fi/afs/article/view/71363. Acesso em: 17 jul. 2024.