Kalendaryong pangkasaysayan 

 - Maynila:  Pambansang Kalupunang Pangkasaysayan,  1970. 
 - iii., 227 pages :  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Historical calendar--Philippines<br/>Philippines --History
<br/><br/><label>LC Class. No.: </label>DS 686.62  / K35 1970