Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.