Gaya APA

Husin, A., suradi, T. (1973). (tidak ada) some notes on the regional geologi of east kalimantan. . Bandung: Geological Survey Of Indonesia.

Gaya MLA

Husin, Aliamin., suradi, Tjuk. "(tidak ada) some notes on the regional geologi of east kalimantan.". Bandung: Geological Survey Of Indonesia, 1973. Logam.