Feldhay, R. Mathematical Entities in Scientific Discourse: Paulus Guldin and his Dissertatio, De Motu Terrae / Rivka Feldhay. Biographies of scientific objects : [. papers presented at a conference on "The Coming into Being and Passing Away of Scientific Objects" held in september 1995 at the Max Planck Institute for the History of Science in Berlin].(2000).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Feldhay, Rivka. "Mathematical Entities in Scientific Discourse: Paulus Guldin and His Dissertatio, De Motu Terrae / Rivka Feldhay." Biographies of Scientific Objects : [. Papers Presented at a Conference on "The Coming into Being and Passing Away of Scientific Objects" Held in September 1995 at the Max Planck Institute for the History of Science in Berlin].(2000) .
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Feldhay, Rivka. "Mathematical Entities in Scientific Discourse: Paulus Guldin and His Dissertatio, De Motu Terrae / Rivka Feldhay." Biographies of Scientific Objects : [. Papers Presented at a Conference on "The Coming into Being and Passing Away of Scientific Objects" Held in September 1995 at the Max Planck Institute for the History of Science in Berlin].(2000), .