Cita APA (7th ed.)

University of the Philippines Diliman. School of Labor and Industrial Relation, Asuncion, R., & Quintana, P. T. (2012). Plastic shopping bag. DZUP.

Cita Chicago (17th ed.)

University of the Philippines Diliman. School of Labor and Industrial Relation, Ronahlee Asuncion, i Peter T. Quintana. Plastic Shopping Bag. Quezon City: DZUP, 2012.

Cita MLA (9th ed.)

University of the Philippines Diliman. School of Labor and Industrial Relation, et al. Plastic Shopping Bag. DZUP, 2012.