Cita APA (7a ed.)

Herrera, M., & Sarmago, R. V. (2002). Synthesis of Pb-free Bi-2223 from Bi-2212 using partial melting. Philippine Engineering Journal.

Cita Chicago Style (17a ed.)

Herrera, M.U, y Roland V. Sarmago. "Synthesis of Pb-free Bi-2223 from Bi-2212 Using Partial Melting." Philippine Engineering Journal 2002.

Cita MLA (9a ed.)

Herrera, M.U, y Roland V. Sarmago. "Synthesis of Pb-free Bi-2223 from Bi-2212 Using Partial Melting." Philippine Engineering Journal, 2002.