Gaya APA
Lay, John. (2007).
The effects of natural aggregates on the properties of concrete .
:
Elsevier.
Gaya Chicago
Lay, John.
The effects of natural aggregates on the properties of concrete.
:
Elsevier,
2007.
Text.
Gaya MLA
Lay, John.
The effects of natural aggregates on the properties of concrete.
:
Elsevier,
2007.
Text.
Gaya Turabian
Lay, John.
The effects of natural aggregates on the properties of concrete.
:
Elsevier,
2007.
Print.