Watts, P. 1., & Howe, P. D. (2010). Strontium and strontium compounds. Geneva, Switzerland: World Health Organization.
Citación estilo ChicagoWatts, Peter 1954-, y Paul D. Howe. Strontium and Strontium Compounds. Geneva, Switzerland: World Health Organization, 2010.
Cita MLAWatts, Peter 1954-, y Paul D. Howe. Strontium and Strontium Compounds. Geneva, Switzerland: World Health Organization, 2010.
Precaución: Estas citas no son 100% exactas.