Cita APA (7a ed.)

ALLEN JOSEPH. (1979). EFFECTIVE BUSINESS COMMUNICATION A PRATICAL GUIDE. GOODYEAR.

Cita Chicago Style (17a ed.)

ALLEN JOSEPH. EFFECTIVE BUSINESS COMMUNICATION A PRATICAL GUIDE. CALIFORNIA: GOODYEAR, 1979.

Cita MLA (9a ed.)

ALLEN JOSEPH. EFFECTIVE BUSINESS COMMUNICATION A PRATICAL GUIDE. GOODYEAR, 1979.