Gaya APA
Soeparno, B. et al
(2014).
Aspek sosial banjir lahar
.
Yogyakarta:
Gadjah Mada Press.
Gaya MLA
Soeparno, Benny. et al.
"Aspek sosial banjir lahar".
Yogyakarta:
Gadjah Mada Press,
2014.
Text.