Castro, E. R. (1998). Outstanding scientists cited by Nat'l Academy. Manila Bulletin.
Cita Chicago (17th ed.)Castro, Eddee RH. "Outstanding Scientists Cited by Nat'l Academy." Manila Bulletin 1998.
Cita MLA (9th ed.)Castro, Eddee RH. "Outstanding Scientists Cited by Nat'l Academy." Manila Bulletin, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.