Cita APA (7th ed.)

Beckwith, J. (1955). Six mobiles: New piano pieces for students in two sets. BMI Canada.

Cita Chicago (17th ed.)

Beckwith, John. Six Mobiles: New Piano Pieces for Students in Two Sets. Toronto: BMI Canada, 1955.

Cita MLA (9th ed.)

Beckwith, John. Six Mobiles: New Piano Pieces for Students in Two Sets. BMI Canada, 1955.