Gaya APA

Mangunwidjaya,Ambyo, . et al (1980). A Review of : Geology, Coal Reserves and Quality of Air Laya Area (Up To KP Drilling Series) . : .

Gaya MLA

Mangunwidjaya,Ambyo, . et al. "A Review of : Geology, Coal Reserves and Quality of Air Laya Area (Up To KP Drilling Series)". : , 1980. Text.