Unknown. (2023). Progress Report of the Forest Research Institute for 1911-1912. Superintendent Government Printing.
Chicago-referens (17:e uppl.)Unknown. Progress Report of the Forest Research Institute for 1911-1912. Superintendent Government Printing, 2023.
MLA-referens (9:e uppl.)Unknown. Progress Report of the Forest Research Institute for 1911-1912. Superintendent Government Printing, 2023.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.