Philippines (Republic) Weather Bureau. Astronomical Division. Philippine astronomical handbook. s.n.
Cita Chicago (17th ed.)Philippines (Republic) Weather Bureau. Astronomical Division. Philippine Astronomical Handbook. [Manila: s.n.
Cita MLA (9th ed.)Philippines (Republic) Weather Bureau. Astronomical Division. Philippine Astronomical Handbook. s.n.
Atenció: Aquestes cites poden no estar 100% correctes.