Ngkaion, E., Tan Afuan, E., & Uy, W. (1999). A Methods engineering study on Camel Appliances Manufacturing Corporation. College of Engineering.
Citazione stile Chigago Style (17a edizione)Ngkaion, Evette, Elaine Tan Afuan, e Wendy Uy. A Methods Engineering Study on Camel Appliances Manufacturing Corporation. Diliman, Quezon City: College of Engineering, 1999.
Citatione MLA (9a ed.)Ngkaion, Evette, et al. A Methods Engineering Study on Camel Appliances Manufacturing Corporation. College of Engineering, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.