APA (7th ed.) Citation

Weisshaar, E., Eckart, W. U., & Bernhard, J. D. (2015). Historical background of itch. Pharmacology of itch. https://doi.org/10.1007/978-3-662-44605-8_1

Chicago Style (17th ed.) Citation

Weisshaar, Elke, Wolfgang U. Eckart, and Jeffrey D. Bernhard. "Historical Background of Itch." Pharmacology of Itch 2015. https://doi.org/10.1007/978-3-662-44605-8_1.

MLA (9th ed.) Citation

Weisshaar, Elke, et al. "Historical Background of Itch." Pharmacology of Itch, 2015, https://doi.org/10.1007/978-3-662-44605-8_1.