Cita APA (7a ed.)
Singer Sewing Machine Company. Education Department. Acolchado a máquina. Limusa.
Cita estilo Chicago (17a ed.)
Singer Sewing Machine Company. Education Department. Acolchado a Máquina. México: Limusa.
Cita MLA (9a ed.)
Singer Sewing Machine Company. Education Department. Acolchado a Máquina. Limusa.
Precaución: Estas citas no son 100% exactas.