Tyl, R. (1966). Disabled persons' co-operatives in the Czechoslovak socialist Republic. International Labour Organization.
Cita Chicago Style (17a ed.)Tyl, Rudolf. Disabled Persons' Co-operatives in the Czechoslovak Socialist Republic. International Labour Organization, 1966.
Cita MLA (9a ed.)Tyl, Rudolf. Disabled Persons' Co-operatives in the Czechoslovak Socialist Republic. International Labour Organization, 1966.
Precaución: Estas citas no son 100% exactas.