Cita APA

Friel, J. K. (2000). Folic acid supplementation: More work is needed. CMAJ.

Chicago Style Citation

Friel, James K. "Folic Acid Supplementation: More Work Is Needed." CMAJ 2000.

Cita MLA

Friel, James K. "Folic Acid Supplementation: More Work Is Needed." CMAJ 2000.

Atenció: Aquestes cites poden no estar 100% correctes.