Gaya APA
Bovill, D.I.N.. (1978).
Rural road appraisal methods for developing countries .
:
TRRL.
Gaya Chicago
Bovill, D.I.N..
Rural road appraisal methods for developing countries.
:
TRRL,
1978.
Chart.
Gaya MLA
Bovill, D.I.N..
Rural road appraisal methods for developing countries.
:
TRRL,
1978.
Chart.
Gaya Turabian
Bovill, D.I.N..
Rural road appraisal methods for developing countries.
:
TRRL,
1978.
Chart.