Cita APA (7th ed.)

Blake, L. S. (1975). Civil engineer's reference book. London : Butterworths.

Cita Chicago (17th ed.)

Blake, L. S. Civil Engineer's Reference Book. London : Butterworths, 1975.

Cita MLA (9th ed.)

Blake, L. S. Civil Engineer's Reference Book. London : Butterworths, 1975.

Atenció: Aquestes cites poden no estar 100% correctes.