Wood, B., & Halliday, A. (2009). Lead was strongly partitioned into Earth's core and not lost to space.
Chicago-referens (17:e uppl.)Wood, B., och A. Halliday. Lead Was Strongly Partitioned into Earth's Core and Not Lost to Space. 2009.
MLA-referens (9:e uppl.)Wood, B., och A. Halliday. Lead Was Strongly Partitioned into Earth's Core and Not Lost to Space. 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.