International Labour Office & Ebel, K. H. (1969). Construction skills. CIRF Publications, ILO.
芝加哥风格引文International Labour Office 与 Karl H. Ebel. Construction Skills. Geneve: CIRF Publications, ILO, 1969.
MLA引文International Labour Office 与 Karl H. Ebel. Construction Skills. CIRF Publications, ILO, 1969.
警告：这些引文格式不一定是100％准确.