APA (7th ed.) Citation

Purschke, G., Westheide, W., & Böggemann, M. (2019). Annelida. Walter de Gruyter GmbH.

Chicago Style (17th ed.) Citation

Purschke, G., Wilfried Westheide, and Markus Böggemann. Annelida. Berlin ; Boston: Walter de Gruyter GmbH, 2019.

MLA (8th ed.) Citation

Purschke, G., et al. Annelida. Walter de Gruyter GmbH, 2019.