Gaya APA
Highway materials. (1971).
New York:
McGrawHill Book Company.
Gaya Chicago
Highway materials.
.
New York:
McGrawHill Book Company,
1971.
Text.
Gaya MLA
Highway materials.
.
New York:
McGrawHill Book Company,
1971.
Text.
Gaya Turabian
Highway materials.
New York:
McGrawHill Book Company,
1971.
Print.