Koch, R. (1930). The book of signs: Which contains all manner of symbols used from the earliest times to the Middle Ages by primitive peoples and early Christians. Dover Publications.
Цитирование в стиле Чикаго (17-е изд.)Koch, Rudolf. The Book of Signs: Which Contains All Manner of Symbols Used from the Earliest Times to the Middle Ages by Primitive Peoples and Early Christians. Dover Publications, 1930.
Цитирование MLA (9-е изд.)Koch, Rudolf. The Book of Signs: Which Contains All Manner of Symbols Used from the Earliest Times to the Middle Ages by Primitive Peoples and Early Christians. Dover Publications, 1930.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.