Cita APA (7a ed.)

Hays, R. (1969). Practically speaking in business, industry and government. Addison-Wesley.

Cita Chicago Style (17a ed.)

Hays, Robert. Practically Speaking in Business, Industry and Government. Reading, Massachusetts [etc.]: Addison-Wesley, 1969.

Cita MLA (9a ed.)

Hays, Robert. Practically Speaking in Business, Industry and Government. Addison-Wesley, 1969.