Penggayaan APA
WHITTAKER, Barry N.. (1990).
Tunnelling : .
England:
The Institution of Mining and Metallurgy.
Chicago Style
WHITTAKER, Barry N..
Tunnelling :.
England:
The Institution of Mining and Metallurgy,
1990.
Buku.
MLA Style
WHITTAKER, Barry N..
Tunnelling :.
England:
The Institution of Mining and Metallurgy,
1990.
Buku.
Turabian Style
WHITTAKER, Barry N..
Tunnelling :.
England:
The Institution of Mining and Metallurgy,
1990.
Buku.