Freud, S., Boehlich, W., Pomerans, A. J., & Silberstein, E. [. (1990). The letters of Sigmund Freud to Eduard Silberstein: 1871 - 1881 / Sigmund Freud. Ed. by Walter Boehlich. Trans. by Arnold J. Pomerans. Belknap Press of Harvard Univ. Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Freud, Sigmund, Walter Boehlich, Arnold J. Pomerans, و Eduard [Adressat] Silberstein. The Letters of Sigmund Freud to Eduard Silberstein: 1871 - 1881 / Sigmund Freud. Ed. by Walter Boehlich. Trans. by Arnold J. Pomerans. Cambridge: Belknap Press of Harvard Univ. Press, 1990.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Freud, Sigmund, et al. The Letters of Sigmund Freud to Eduard Silberstein: 1871 - 1881 / Sigmund Freud. Ed. by Walter Boehlich. Trans. by Arnold J. Pomerans. Belknap Press of Harvard Univ. Press, 1990.