Cita APA (7th ed.)

Institute of Vocational Training and Development. Information and Documentation Services. Catalogue of training materials. Part 1-Print. National Manpower and Youth Council.

Cita Chicago (17th ed.)

Institute of Vocational Training and Development. Information and Documentation Services. Catalogue of Training Materials. Part 1-Print. Taguig: National Manpower and Youth Council.

Cita MLA (9th ed.)

Institute of Vocational Training and Development. Information and Documentation Services. Catalogue of Training Materials. Part 1-Print. National Manpower and Youth Council.