Citazione Stile APA (7a Edizione)

Asherman, I., & Asherman, S. (1990). The negotiation sourcebook. Human Resource Development Press.

Citazione stile Chigago Style (17a edizione)

Asherman, Ira, e Sandy Asherman. The Negotiation Sourcebook. Amherst, Mass: Human Resource Development Press, 1990.

Citatione MLA (9a ed.)

Asherman, Ira, e Sandy Asherman. The Negotiation Sourcebook. Human Resource Development Press, 1990.