Gaya APA

Caress, M, E. (1985). Volcanology of The Youngest Toba Tuff, Sumatera . HAWAII: Geology and geohphysics.

Gaya MLA

Caress, Mary, Elizabeth. "Volcanology of The Youngest Toba Tuff, Sumatera". HAWAII: Geology and geohphysics, 1985. Text.