Cita APA

Watts, P. 1., & Howe, P. D. (2010). Strontium and strontium compounds. Geneva, Switzerland: World Health Organization.

Citación estilo Chicago

Watts, Peter 1954-, y Paul D. Howe. Strontium and Strontium Compounds. Geneva, Switzerland: World Health Organization, 2010.

Cita MLA

Watts, Peter 1954-, y Paul D. Howe. Strontium and Strontium Compounds. Geneva, Switzerland: World Health Organization, 2010.