(1956). Round! a round!: Any combination of voices / compiled by Walter Ehret.
Citazione stile Chigago Style (17a edizione)Round! a Round!: Any Combination of Voices / Compiled by Walter Ehret. 1956.
Citatione MLA (9a ed.)Round! a Round!: Any Combination of Voices / Compiled by Walter Ehret. 1956.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.