APA (7th ed.) Citation

Moon, P. (1971). The abacus : its history; its design; its possibilities in the modern world / (by) Parry Moon: Its history; its design; its possibilities in the modern world. Gordon and Breach.

Chicago Style (17th ed.) Citation

Moon, Parry. The Abacus : Its History; Its Design; Its Possibilities in the Modern World / (by) Parry Moon: Its History; Its Design; Its Possibilities in the Modern World. New York ; London: Gordon and Breach, 1971.

MLA (9th ed.) Citation

Moon, Parry. The Abacus : Its History; Its Design; Its Possibilities in the Modern World / (by) Parry Moon: Its History; Its Design; Its Possibilities in the Modern World. Gordon and Breach, 1971.

Warning: These citations may not always be 100% accurate.