Cita APA

Kramer, M. S., & Kramer, M. S. (1987). Determinants of low birth weight: Methodological assessment and meta-analysis. Canadá: World Health Organization.

Citación estilo Chicago

Kramer, M. S., y M. S. Kramer. Determinants of Low Birth Weight: Methodological Assessment and Meta-analysis. Canadá: World Health Organization, 1987.

Cita MLA

Kramer, M. S., y M. S. Kramer. Determinants of Low Birth Weight: Methodological Assessment and Meta-analysis. Canadá: World Health Organization, 1987.