APA-viite (7. p.)

Não informado. (2011). Work Study & Management Services. Institute of Practitioners in Work Study, Organization and Methods.

Chicago-viite (17. p.)

Não informado. Work Study & Management Services. Middlesex, Inglaterra: Institute of Practitioners in Work Study, Organization and Methods, 2011.

MLA-viite (8. p.)

Não informado. Work Study & Management Services. Institute of Practitioners in Work Study, Organization and Methods, 2011.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.