Proosdij, B. A. (1954). Two thunderclouds closing in conflict: The meeting of Madvig and Cobet at the tercentenary of Leyden University and its historical background. Leiden ; Boston: Brill.
استشهاد بنمط شيكاغوProosdij, B. A.. Two Thunderclouds Closing in Conflict: The Meeting of Madvig and Cobet At the Tercentenary of Leyden University and Its Historical Background. Leiden ; Boston: Brill, 1954.
MLA استشهادProosdij, B. A.. Two Thunderclouds Closing in Conflict: The Meeting of Madvig and Cobet At the Tercentenary of Leyden University and Its Historical Background. Leiden ; Boston: Brill, 1954.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.