Gaya APA

Darnley, A. (1995). A global Geochemical Database for Environtal and Resorce Management (1). : Jacqueline Elsmore and Susan Davis.

Gaya MLA

Darnley, A.G.. "A global Geochemical Database for Environtal and Resorce Management". 1 : Jacqueline Elsmore and Susan Davis, 1995. Text.