Gray, R., & Wheatley, K. (1991). How to avoid bias when comparing bone marrow transplantation with chemotherapy.
Cita Chicago (17th ed.)Gray, R., i K. Wheatley. How to Avoid Bias When Comparing Bone Marrow Transplantation with Chemotherapy. 1991.
Cita MLA (9th ed.)Gray, R., i K. Wheatley. How to Avoid Bias When Comparing Bone Marrow Transplantation with Chemotherapy. 1991.
Atenció: Aquestes cites poden no estar 100% correctes.