توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Gray, R., Clarke, M., Collins, R., & Peto, R. (1993). The EBCTCG overview of adjuvant therapy of breast cancer. What are the implications for future studies? Early Breast Cancer Trialists' Collaborative Group.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Gray, R., M. Clarke, R. Collins, و R. Peto. The EBCTCG Overview of Adjuvant Therapy of Breast Cancer. What Are the Implications for Future Studies? Early Breast Cancer Trialists' Collaborative Group. 1993.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Gray, R., et al. The EBCTCG Overview of Adjuvant Therapy of Breast Cancer. What Are the Implications for Future Studies? Early Breast Cancer Trialists' Collaborative Group. 1993.