Παραπομπή σε μορφή APA (7η εκδ.)

International Labour Office & ebrary, Inc. (2011). Manual on the measurement of volunteer work. International Labour Office.

Παραπομπή σε μορφή Chicago (17η εκδ.)

International Labour Office και Inc ebrary. Manual on the Measurement of Volunteer Work. Genève, Switzerland: International Labour Office, 2011.

Παραπομπή σε μορφή MLA (9th εκδ.)

International Labour Office και Inc ebrary. Manual on the Measurement of Volunteer Work. International Labour Office, 2011.