Gaya APA
Newill, D.. (1980).
The Location and engineering properties of Volcanic cinder gravels in Ethiopia .
:
TRRL.
Gaya Chicago
Newill, D..
The Location and engineering properties of Volcanic cinder gravels in Ethiopia.
:
TRRL,
1980.
Computer Software.
Gaya MLA
Newill, D..
The Location and engineering properties of Volcanic cinder gravels in Ethiopia.
:
TRRL,
1980.
Computer Software.
Gaya Turabian
Newill, D..
The Location and engineering properties of Volcanic cinder gravels in Ethiopia.
:
TRRL,
1980.
Computer Software.