Gaya APA
Twort, A, C., Rees, J, G. (1995).
Civil Engineering: Supervision and Management (3rd ed.).
London:
Edward Arnold (Publishers) Ltd.
Gaya MLA
Twort, A, C., Rees, J, Gordon.
"Civil Engineering: Supervision and Management".
3rd ed.
London:
Edward Arnold (Publishers) Ltd,
1995.
e-book.