Cita APA (7th ed.)

Development Academy of the Philippines. Productivity and Development Center. (1980). Human factors affecting productivity: An exploratory study. Productivity and Development Center, Development Academy of the Philippines.

Cita Chicago (17th ed.)

Development Academy of the Philippines. Productivity and Development Center. Human Factors Affecting Productivity: An Exploratory Study. [Pasig, Metro Manila: Productivity and Development Center, Development Academy of the Philippines, 1980.

Cita MLA (9th ed.)

Development Academy of the Philippines. Productivity and Development Center. Human Factors Affecting Productivity: An Exploratory Study. Productivity and Development Center, Development Academy of the Philippines, 1980.