Citazione Stile APA (7a Edizione)

Ridenour, F. (1967). So, What's the Difference? GL Regal Books, A Division of G/L Publicaitons.

Citazione stile Chigago Style (17a edizione)

Ridenour, Fritz. So, What's the Difference? Glendale, CA: GL Regal Books, A Division of G/L Publicaitons, 1967.

Citatione MLA (9a ed.)

Ridenour, Fritz. So, What's the Difference? GL Regal Books, A Division of G/L Publicaitons, 1967.