APA (7th ed.) Citation

Helliwell, P., Bird, H., & Wright, V. (1989). Rheumatology. Springer.

Chicago Style (17th ed.) Citation

Helliwell, Philip, Howard Bird, and Verna Wright. Rheumatology. Berlin [u.a.]: Springer, 1989.

MLA (9th ed.) Citation

Helliwell, Philip, et al. Rheumatology. Springer, 1989.