Gaya APA
Williams, P. (LGLF19865).
Geological Data Record Sintang 1:250,000 Quadrangle West Kalimantan .
United State:
Pusat Sumber Daya Geologi.
Gaya MLA
Williams, P.R..
"Geological Data Record Sintang 1:250,000 Quadrangle West Kalimantan".
United State:
Pusat Sumber Daya Geologi,
LGLF19865.
Logam.