APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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