Gaya APA
Holm, O. S.. (1981).
Friction Bearing Pipe Piles at Calabar Port .
:
s.n..
Gaya Chicago
Holm, O. S..
Friction Bearing Pipe Piles at Calabar Port.
:
s.n.,
1981.
Computer Software.
Gaya MLA
Holm, O. S..
Friction Bearing Pipe Piles at Calabar Port.
:
s.n.,
1981.
Computer Software.
Gaya Turabian
Holm, O. S..
Friction Bearing Pipe Piles at Calabar Port.
:
s.n.,
1981.
Computer Software.