Não informado. (1955). Pesticides abstracts and news summary. Ministry of Overseas Development.
Chicago-referens (17:e uppl.)Não informado. Pesticides Abstracts and News Summary. London: Ministry of Overseas Development, 1955.
MLA-referens (8:e uppl.)Não informado. Pesticides Abstracts and News Summary. Ministry of Overseas Development, 1955.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.