Rafn, J. (2023). The Testing of Forest Seeds During 25 years 1887-1912. Forest Research Institute.
Chicago-referens (17:e uppl.)Rafn, Johannes. The Testing of Forest Seeds During 25 Years 1887-1912. Forest Research Institute, 2023.
MLA-referens (9:e uppl.)Rafn, Johannes. The Testing of Forest Seeds During 25 Years 1887-1912. Forest Research Institute, 2023.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.