Gaya APA

Lewicki, Roy J.. (2007). Essentials of Negotiation (4th Ed.). Boston: McGraw-Hill.

Gaya Chicago

Lewicki, Roy J.. Essentials of Negotiation. 4th Ed. Boston: McGraw-Hill, 2007. Text.

Gaya MLA

Lewicki, Roy J.. Essentials of Negotiation. 4th Ed. Boston: McGraw-Hill, 2007. Text.

Gaya Turabian

Lewicki, Roy J.. Essentials of Negotiation. 4th Ed. Boston: McGraw-Hill, 2007. Print.