Philippines (Republic.) National Historical Commission. (1970). Kalendaryong pangkasaysayan. Lathala ng Pambansang Kalupunang Pangkasaysayan.
Chicago-viite (17. p.)Philippines (Republic.) National Historical Commission. Kalendaryong Pangkasaysayan. Maynila: Lathala ng Pambansang Kalupunang Pangkasaysayan, 1970.
MLA-viite (9. p.)Philippines (Republic.) National Historical Commission. Kalendaryong Pangkasaysayan. Lathala ng Pambansang Kalupunang Pangkasaysayan, 1970.
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