Gaya APA
Chen, W. F.. (1980).
Sulphur-Treated Concrete Slabs .
:
s.n..
Gaya Chicago
Chen, W. F..
Sulphur-Treated Concrete Slabs.
:
s.n.,
1980.
Text.
Gaya MLA
Chen, W. F..
Sulphur-Treated Concrete Slabs.
:
s.n.,
1980.
Text.
Gaya Turabian
Chen, W. F..
Sulphur-Treated Concrete Slabs.
:
s.n.,
1980.
Print.