Cita APA (7a ed.)

Field, L. (2003). What the Groups are Doing? Newcastle Group. Zenodo.

Cita Chicago Style (17a ed.)

Field, Len. What the Groups Are Doing? Newcastle Group. Zenodo, 2003.

Cita MLA (9a ed.)

Field, Len. What the Groups Are Doing? Newcastle Group. Zenodo, 2003.