World Healt Organization International programs on Chemical Safety IPCS. (1998). Boron. WHO.
Cita Chicago Style (17a ed.)World Healt Organization International programs on Chemical Safety IPCS. Boron. Geneva: WHO, 1998.
Cita MLA (8a ed.)World Healt Organization International programs on Chemical Safety IPCS. Boron. WHO, 1998.
Precaución: Estas citas no son 100% exactas.