Citazione Stile APA (7a Edizione)

Chesterfield, E. o., & Schumann, K. (1918). Letters to His Son. Tauchnitz.

Citazione stile Chigago Style (17a edizione)

Chesterfield, Earl of, e Kurt Schumann. Letters to His Son. Leipzig: Tauchnitz, 1918.

Citatione MLA (8a ed.)

Chesterfield, Earl of, e Kurt Schumann. Letters to His Son. Tauchnitz, 1918.