APA (7th ed.) Citation

Marco, J., & Dittrich, K. (1961). Ancient coins from Olbia and Panticapaeum. Spring Books.

Chicago Style (17th ed.) Citation

Marco, Jinderich, and Karel Dittrich. Ancient Coins from Olbia and Panticapaeum. London: Spring Books, 1961.

MLA (9th ed.) Citation

Marco, Jinderich, and Karel Dittrich. Ancient Coins from Olbia and Panticapaeum. Spring Books, 1961.