MLA

Billings, Darya Buehler, and Rajiv M Patel. Soft Tissue Tumors of the Skin. Springer New York, 2019.

APA

Billings, B., Buehler, D., & Patel, R. M. (2019). Soft Tissue Tumors of the Skin. Springer New York.

Chicago

Billings, Darya Buehler, and Rajiv M Patel. Soft Tissue Tumors of the Skin. : Springer New York, 2019.