Cita APA (7th ed.)

Winblad, U., & Dudley, E. (1997). Primary school physical environment and health: WHO global school health initiative. World Health Organization.

Cita Chicago (17th ed.)

Winblad, Uno, i Eric Dudley. Primary School Physical Environment and Health: WHO Global School Health Initiative. Geneva: World Health Organization, 1997.

Cita MLA (9th ed.)

Winblad, Uno, i Eric Dudley. Primary School Physical Environment and Health: WHO Global School Health Initiative. World Health Organization, 1997.