(1997). The Global Precipitation Climatology Project (GPCP) combined precipitation dataset George J. Huffman [and others]. [microform].
Chicago-referens (17:e uppl.)The Global Precipitation Climatology Project (GPCP) Combined Precipitation Dataset George J. Huffman [and Others]. [microform]. 1997.
MLA-referens (9:e uppl.)The Global Precipitation Climatology Project (GPCP) Combined Precipitation Dataset George J. Huffman [and Others]. [microform]. 1997.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.