Institute of Vocational Training and Development. Information and Documentation Services. Catalogue of training materials. Part 1-Print. National Manpower and Youth Council.
芝加哥风格引文Institute of Vocational Training and Development. Information and Documentation Services. Catalogue of Training Materials. Part 1-Print. Taguig: National Manpower and Youth Council.
MLA引文Institute of Vocational Training and Development. Information and Documentation Services. Catalogue of Training Materials. Part 1-Print. National Manpower and Youth Council.
警告：这些引文格式不一定是100％准确.