Gaya APA
Liu, R.T.. (2012).
Field investigation and surface detection techniques of abandoned coal mine goafs .
:
CRC Press.
Gaya Chicago
Liu, R.T..
Field investigation and surface detection techniques of abandoned coal mine goafs.
:
CRC Press,
2012.
Computer Software.
Gaya MLA
Liu, R.T..
Field investigation and surface detection techniques of abandoned coal mine goafs.
:
CRC Press,
2012.
Computer Software.
Gaya Turabian
Liu, R.T..
Field investigation and surface detection techniques of abandoned coal mine goafs.
:
CRC Press,
2012.
Computer Software.