Não informado. (1982). Streamland. National Water and Soil Conservation Authority.
Chicago-referens (17:e uppl.)Não informado. Streamland. Wellington: National Water and Soil Conservation Authority, 1982.
MLA-referens (8:e uppl.)Não informado. Streamland. National Water and Soil Conservation Authority, 1982.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.