Cita APA (7th ed.)

GUTH, H. P. (1969). Words and ideas.-- ed.3. Waadsworth Publishing.

Cita Chicago (17th ed.)

GUTH, Hans P. Words and Ideas.-- Ed.3. Belmont: Waadsworth Publishing, 1969.

Cita MLA (9th ed.)

GUTH, Hans P. Words and Ideas.-- Ed.3. Waadsworth Publishing, 1969.