I, H., R, M., & M, B. (2007). Prevalence of mild serum vitamin B12 deficiency in rural and urban Costa Rican young adults. Pan American Journal of Public Health / Revista Panamericana de Salud Pública, 22(6), 396. https://doi.org/10.1590/s1020-49892007001100005
Παραπομπή σε μορφή Chicago (17η εκδ.)I, Holst-Schumacher, Monge-Rojas R, και Barrantes-Santamaría M. "Prevalence of Mild Serum Vitamin B12 Deficiency in Rural and Urban Costa Rican Young Adults." Pan American Journal of Public Health / Revista Panamericana De Salud Pública 22, no. 6 (2007): 396. https://doi.org/10.1590/s1020-49892007001100005.
Παραπομπή σε μορφή MLA (9th εκδ.)I, Holst-Schumacher, et al. "Prevalence of Mild Serum Vitamin B12 Deficiency in Rural and Urban Costa Rican Young Adults." Pan American Journal of Public Health / Revista Panamericana De Salud Pública, vol. 22, no. 6, 2007, p. 396, https://doi.org/10.1590/s1020-49892007001100005.