Cita APA (7th ed.)

Burde, G., Zieschang, H., & Heusener, M. (2013). Knots (Third, fully revised and extended edition.). Walter de Gruyter GmbH & Co. KG.

Cita Chicago (17th ed.)

Burde, Gerhard, Heiner Zieschang, i Michael Heusener. Knots. Third, fully revised and extended edition. Berlin ; Boston: Walter de Gruyter GmbH & Co. KG, 2013.

Cita MLA (9th ed.)

Burde, Gerhard, et al. Knots. Third, fully revised and extended edition. Walter de Gruyter GmbH & Co. KG, 2013.