(2019). How organic pollutants poison our health unsafe at any level / by Penny May Hopkins. [electronic resource].
Chicago-referens (17:e uppl.)How Organic Pollutants Poison Our Health Unsafe at Any Level / by Penny May Hopkins. [electronic Resource]. 2019.
MLA-referens (9:e uppl.)How Organic Pollutants Poison Our Health Unsafe at Any Level / by Penny May Hopkins. [electronic Resource]. 2019.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.