Kiek, S. N. (1962). The determination of soil acidity. Snowy Mountains Hydro Electric Authority, Scientific Services Division.
Chicago-referens (17:e uppl.)Kiek, Sidney Noel. The Determination of Soil Acidity. [Cooma]: Snowy Mountains Hydro Electric Authority, Scientific Services Division, 1962.
MLA-referens (9:e uppl.)Kiek, Sidney Noel. The Determination of Soil Acidity. Snowy Mountains Hydro Electric Authority, Scientific Services Division, 1962.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.