APA aipamena

(1995). Project Cost Estimating Ed. Nigel J. Smith. Thomas Telford.

Chicago Style aipamena

Project Cost Estimating Ed. Nigel J. Smith. Thomas Telford, 1995.

MLA aipamena

Project Cost Estimating Ed. Nigel J. Smith. Thomas Telford, 1995.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.