Cita APA (7a ed.)

Kay, R., Scheurlen, H., & Baum, M. (1982). Clinical trials in early breast cancer: 2nd Heildelberg Symposium, Heidelberg, Dec. 14-17, 1981. Birkhäuser.

Cita Chicago Style (17a ed.)

Kay, Richard, Hans Scheurlen, y Michael Baum. Clinical Trials in Early Breast Cancer: 2nd Heildelberg Symposium, Heidelberg, Dec. 14-17, 1981. Basel ; Boston: Birkhäuser, 1982.

Cita MLA (9a ed.)

Kay, Richard, et al. Clinical Trials in Early Breast Cancer: 2nd Heildelberg Symposium, Heidelberg, Dec. 14-17, 1981. Birkhäuser, 1982.