Cita APA (7a ed.)

(2018). The Sphere handbook: Humanitarian charter and minimum standards in humanitarian response (Fourth edition.). Sphere Association.

Cita Chicago Style (17a ed.)

The Sphere Handbook: Humanitarian Charter and Minimum Standards in Humanitarian Response. Fourth edition. Geneva, Switzerland: Sphere Association, 2018.

Cita MLA (9a ed.)

The Sphere Handbook: Humanitarian Charter and Minimum Standards in Humanitarian Response. Fourth edition. Sphere Association, 2018.