Gaya APA
Civil engineer's reference book. (1980).
England:
Butterworths.
Gaya Chicago
Civil engineer's reference book.
text.
England:
Butterworths,
1980.
.
Gaya MLA
Civil engineer's reference book.
text.
England:
Butterworths,
1980.
.
Gaya Turabian
Civil engineer's reference book.
England:
Butterworths,
1980.
.