Gaya APA
Walton, R, E. (1987).
Managing Conflict, Interpersonal Dialogue and Third-party Roles (Kedua).
USA:
Addison Wesley.
Gaya MLA
Walton, Richard, E..
"Managing Conflict, Interpersonal Dialogue and Third-party Roles".
Kedua
USA:
Addison Wesley,
1987.
Teksbook.