Citazione Stile APA (7a Edizione)

Roberts , P. (2004). Liven up your meeting: 50 tried and tested ways. Infinity Books.

Citazione stile Chigago Style (17a edizione)

Roberts , Phelps. Liven Up Your Meeting: 50 Tried and Tested Ways. New Delhi: Infinity Books, 2004.

Citatione MLA (9a ed.)

Roberts , Phelps. Liven Up Your Meeting: 50 Tried and Tested Ways. Infinity Books, 2004.