Gaya APA

Situmorang, T. (1986). A Geomorphological Approach The Study Of The Quaternary Volcanic Stratigraphy And to The Assesment Of Volcanic Hazards, Using Aerospace Imaginery . Belanda: International Institute for Aerospace Survey and Earth Sciences.

Gaya MLA

Situmorang, T.. "A Geomorphological Approach The Study Of The Quaternary Volcanic Stratigraphy And to The Assesment Of Volcanic Hazards, Using Aerospace Imaginery". Belanda: International Institute for Aerospace Survey and Earth Sciences, 1986. Text.