Citazione Stile APA (7a Edizione)

FRASEN ROBINSON JOHN. (1989). SECRETS OF EFFECTIVE DIRECT MAIL. MCGRAW-HILL.

Citazione stile Chigago Style (17a edizione)

FRASEN ROBINSON JOHN. SECRETS OF EFFECTIVE DIRECT MAIL. LONDON: MCGRAW-HILL, 1989.

Citatione MLA (9a ed.)

FRASEN ROBINSON JOHN. SECRETS OF EFFECTIVE DIRECT MAIL. MCGRAW-HILL, 1989.