Gaya APA
Blake, L. S. (1989).
(Ebook) Civil engineer's reference book (4th Edition).
London:
Butterwoths.
Gaya Chicago
Blake, L. S.
(Ebook) Civil engineer's reference book.
4th Edition
London:
Butterwoths,
1989.
Text.
Gaya MLA
Blake, L. S.
(Ebook) Civil engineer's reference book.
4th Edition
London:
Butterwoths,
1989.
Text.
Gaya Turabian
Blake, L. S.
(Ebook) Civil engineer's reference book.
4th Edition
London:
Butterwoths,
1989.
Print.