Gaya APA
NCHRP 197. Cost and safety effectiveness of highway design elements. (1978).
:
TRB.
Gaya Chicago
NCHRP 197. Cost and safety effectiveness of highway design elements.
.
:
TRB,
1978.
Chart.
Gaya MLA
NCHRP 197. Cost and safety effectiveness of highway design elements.
.
:
TRB,
1978.
Chart.
Gaya Turabian
NCHRP 197. Cost and safety effectiveness of highway design elements.
:
TRB,
1978.
Chart.