APA
Ury W., Linsky M., . (1985). Beyond the hotline. Boston: Houghton Mifflin Co.
Chicago
Ury William, Linsky Martin, . 1985. Beyond the hotline. Boston: Houghton Mifflin Co.
Harvard
Ury W., Linsky M., . (1985). Beyond the hotline. Boston: Houghton Mifflin Co.
MLA
Ury William, Linsky Martin, . Beyond the hotline. Boston: Houghton Mifflin Co. 1985.