MLA

Riley, David S. Materia Medica of New and Old Homeopathic Medicines. Springer Berlin Heidelberg, 2018.

APA

Riley, D. S. (2018). Materia Medica of New and Old Homeopathic Medicines. Springer Berlin Heidelberg.

Chicago

Riley, David S. Materia Medica of New and Old Homeopathic Medicines. : Springer Berlin Heidelberg, 2018.