Cita APA (7th ed.)

Hollander, J. E. (2018). Signo de Wellens. McGraw-Hill Education LLC..

Cita Chicago (17th ed.)

Hollander, Judd E. Signo De Wellens. New York, N.Y.: McGraw-Hill Education LLC., 2018.

Cita MLA (9th ed.)

Hollander, Judd E. Signo De Wellens. McGraw-Hill Education LLC., 2018.