Gaya APA
Silverleaf, A.. (1972).
The aggregates industry: some possible effects of technical requirements and innovations .
:
TRRL.
Gaya Chicago
Silverleaf, A..
The aggregates industry: some possible effects of technical requirements and innovations.
:
TRRL,
1972.
Text.
Gaya MLA
Silverleaf, A..
The aggregates industry: some possible effects of technical requirements and innovations.
:
TRRL,
1972.
Text.
Gaya Turabian
Silverleaf, A..
The aggregates industry: some possible effects of technical requirements and innovations.
:
TRRL,
1972.
Print.