APA

Neal D. A., . (1998). Telephone techniques. New York: McGraw-Hill.

Chicago

Neal Dorothy A, . 1998. Telephone techniques. New York: McGraw-Hill.

Harvard

Neal D. A., . (1998). Telephone techniques. New York: McGraw-Hill.

MLA

Neal Dorothy A, . Telephone techniques. New York: McGraw-Hill. 1998.