APA aipamena

Singer, H. W. (1982). Technologies for basic needs (Second edition.). International Labour Office.

Chicago Style aipamena

Singer, H. W. Technologies for Basic Needs. Second edition. Geneva: International Labour Office, 1982.

MLA aipamena

Singer, H. W. Technologies for Basic Needs. Second edition. International Labour Office, 1982.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.