APA (7 वां संस्करण) प्रशस्ति पत्र
Neumann, T. (2012). The duty to cooperate in international sales: The scope and role of Article 80 CISG. Sellier European Law Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Neumann, Thomas. The Duty to Cooperate in International Sales: The Scope and Role of Article 80 CISG. Berlin: Sellier European Law Publishers, 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Neumann, Thomas. The Duty to Cooperate in International Sales: The Scope and Role of Article 80 CISG. Sellier European Law Publishers, 2012.
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