лунно-солнечный календарь
From the History of Science
Time measurement and calendars in Ancient Mesopotamia (The Sumerian period)
Kurtik G. E.© Studies in the History of Science and Technology: Quarterly scientific journal of the Russian Academy of Sciences (2015)
ISSN 0205-9606. Индекс 70143
ISSN 0205-9606. Индекс 70143