Παραπομπή σε μορφή APA (7η εκδ.)

Abrena, J., Endaya, V. C., Tan, L., & Zoleta, Z. (1999). A Feasiblity study on WeldPRO 3000 A Switchmode Welding Machine. College of Engineering.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Abrena, Jasmin, Victor Carlo Endaya, Lawrence Tan, και Zarah Zoleta. A Feasiblity Study on WeldPRO 3000 A Switchmode Welding Machine. Diliman, Quezon City: College of Engineering, 1999.

Παραπομπή σε μορφή MLA (9th εκδ.)

Abrena, Jasmin, et al. A Feasiblity Study on WeldPRO 3000 A Switchmode Welding Machine. College of Engineering, 1999.