APA aipamena

Consultancy and contract engineering orgaisations. (1975). Guide for selection of consultancy organisation.

Chicago Style aipamena

Consultancy and contract engineering orgaisations. Guide for Selection of Consultancy Organisation. 1975.

MLA aipamena

Consultancy and contract engineering orgaisations. Guide for Selection of Consultancy Organisation. 1975.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.