Cita APA (7th ed.)

SCHLOFF LAURIE. (1992). SMART SPEAKING. PLUME BOOK.

Cita Chicago (17th ed.)

SCHLOFF LAURIE. SMART SPEAKING. NEW YORK: PLUME BOOK, 1992.

Cita MLA (9th ed.)

SCHLOFF LAURIE. SMART SPEAKING. PLUME BOOK, 1992.