Trio, J. K., Valencia, C., Manacsa, R., & Flor, R. (1990). Friendly grocer: Amidst tough competition. UP College of Engineering.
Style de citation Chicago (17e éd.)Trio, John Kenneth, Carlos Valencia, Roberto Manacsa, et Roger Flor. Friendly Grocer: Amidst Tough Competition. Quezon City: UP College of Engineering, 1990.
Style de citation MLA (9e éd.)Trio, John Kenneth, et al. Friendly Grocer: Amidst Tough Competition. UP College of Engineering, 1990.
Attention : ces citations peuvent ne pas être correctes à 100%.