History of the calendar in different countries through the ages - Saha, Meghnad, 1893-1956.; Lahiri, N. C.; Council of Scientific & Industrial Research (India) (New Delhi : Council of Scientific & Industrial Research, 1992)
Reprint. Originally published: 1955.
Includes bibliographical references (p. 271-272) and index.
In English.
Keywords: Calendar -- History; Chronology, Historical; Astronomy