Akkerman, F., & Spinoza, B. d. (1980). Studies in the posthumous works of Spinoza: On style, earliest translation and reception, earliest and modern edition of some texts. Rijksuniversiteit te Groningen.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Akkerman, Fokke, و Benedictus de Spinoza. Studies in the Posthumous Works of Spinoza: On Style, Earliest Translation and Reception, Earliest and Modern Edition of Some Texts. [Groningen]: Rijksuniversiteit te Groningen, 1980.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Akkerman, Fokke, و Benedictus de Spinoza. Studies in the Posthumous Works of Spinoza: On Style, Earliest Translation and Reception, Earliest and Modern Edition of Some Texts. Rijksuniversiteit te Groningen, 1980.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.