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Editors T. Preface. Rerum Causae. 2017;9(2):viii–ix.

Editors, T. (2017). Preface. Rerum Causae, 9(2), viii–ix.

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Editors, The. 2017. “Preface”. Rerum Causae 9 (2): viii–ix.

Editors, The. “Preface”. Rerum Causae 9, no. 2 (2017): viii–ix.

Editors, T. “Preface”. Rerum Causae, vol. 9, no. 2, 2017, p. viii–ix.