Association, 6. B. R. M. C. (1971). BRMCA guide. Ashford, Middl. : [s n].
Cita Chicago (17th ed.)Association, 6449 British Ready Mixed Concrete. BRMCA Guide. Ashford, Middl. : [s n], 1971.
Cita MLA (9th ed.)Association, 6449 British Ready Mixed Concrete. BRMCA Guide. Ashford, Middl. : [s n], 1971.
Atenció: Aquestes cites poden no estar 100% correctes.