SMITH, L. R. (1994). Communications And English For Careers Leila R. Smith, Yolanda V. Grisolia. Prentice - Hall.
Chicago-viite (17. p.)SMITH, Leila R. Communications And English For Careers Leila R. Smith, Yolanda V. Grisolia. Prentice - Hall, 1994.
MLA-viite (8. p.)SMITH, Leila R. Communications And English For Careers Leila R. Smith, Yolanda V. Grisolia. Prentice - Hall, 1994.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.