APA

Li C. I., Malone K. E. & Daling J. R. (20020906). Differences in breast cancer hormone receptor status and histology by race and ethnicity among women 50 years of age and older. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.

Chicago

Li Christopher I, Malone Kathleen E and Daling Janet R. 20020906. Differences in breast cancer hormone receptor status and histology by race and ethnicity among women 50 years of age and older. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.

Harvard

Li C. I., Malone K. E. and Daling J. R. (20020906). Differences in breast cancer hormone receptor status and histology by race and ethnicity among women 50 years of age and older. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.

MLA

Li Christopher I, Malone Kathleen E and Daling Janet R. Differences in breast cancer hormone receptor status and histology by race and ethnicity among women 50 years of age and older. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology. 20020906.