International Labour Organisation & United Nations Development Programme. (1986). Gabions. International Labour Office.
Cita Chicago (17th ed.)International Labour Organisation i United Nations Development Programme. Gabions. Geneva: International Labour Office, 1986.
Cita MLA (8th ed.)International Labour Organisation i United Nations Development Programme. Gabions. International Labour Office, 1986.
Atenció: Aquestes cites poden no estar 100% correctes.