Cita APA (7a ed.)

Johnston, G. A. (1970). The International Labour Organisation: Its work for social and economic progress. Europa.

Cita Chicago Style (17a ed.)

Johnston, G. A. The International Labour Organisation: Its Work for Social and Economic Progress. London: Europa, 1970.

Cita MLA (9a ed.)

Johnston, G. A. The International Labour Organisation: Its Work for Social and Economic Progress. Europa, 1970.