Burde, G., Zieschang, H., & Heusener, M. (2013). Knots (Third, fully revised and extended edition.). Walter de Gruyter GmbH & Co. KG.
Čikaški stil citiranja (17. izdanje)Burde, Gerhard, Heiner Zieschang, i Michael Heusener. Knots. Third, fully revised and extended edition. Berlin ; Boston: Walter de Gruyter GmbH & Co. KG, 2013.
MLA način citiranja (9. izdanje)Burde, Gerhard, et al. Knots. Third, fully revised and extended edition. Walter de Gruyter GmbH & Co. KG, 2013.
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