Siepmann, D. (2011) Writing in English: a guide for advanced learners [book]. 2., rev. and ext. edition, UTB. 2., rev. and ext. edition. Tübingen: Francke (UTB, 3124 : Schlüsselkompetenzen Sprache und Literatur).
Chicago Manual of Style 17th edition (full note)Siepmann, Dirk. Writing in English: a guide for advanced learners. Book. UTB. 2., rev. and ext. edition. UTB, 3124 : Schlüsselkompetenzen Sprache und Literatur. Tübingen: Francke, [2011?], Tübingen: Francke, [2011?].
American Psychological Association 7th editionSiepmann, D. (ca. 2011). Writing in English: a guide for advanced learners [Book]. In UTB (2., rev. and ext. edition). Francke.
Modern Language Association 9th editionSiepmann, D. „Writing in English: a guide for advanced learners“. UTB, 2., rev. and ext. edition, book, Francke, 2011.
ISO-690 (author-date, Deutsch)SIEPMANN, Dirk, 2011. Writing in English: a guide for advanced learners. 2., rev. and ext. edition. Tübingen: Francke. UTB, 3124 : Schlüsselkompetenzen Sprache und Literatur. ISBN 9783825236007