(1990). Selected annotated bibliography on essential drugs <i>es</i>.
Cita Chicago Style (17a ed.)Selected Annotated Bibliography on Essential Drugs <i>es</i>. 1990.
Cita MLA (9a ed.)Selected Annotated Bibliography on Essential Drugs <i>es</i>. 1990.
Precaución: Estas citas no son 100% exactas.