Cita APA

Ray, J. G., & Cole, D. E. (2005). Vitamin B(12) and homocysteine. Canadian Medical Association.

Chicago Style Citation

Ray, Joel G., i David E.C Cole. Vitamin B(12) and Homocysteine. Canadian Medical Association, 2005.

Cita MLA

Ray, Joel G., i David E.C Cole. Vitamin B(12) and Homocysteine. Canadian Medical Association, 2005.