Cita APA (7th ed.)

Hancock, J. C. (1961). An introduction to the principles of communication theory. McGraw-Hill.

Cita Chicago (17th ed.)

Hancock, John C. An Introduction to the Principles of Communication Theory. Nueva York: McGraw-Hill, 1961.

Cita MLA (9th ed.)

Hancock, John C. An Introduction to the Principles of Communication Theory. McGraw-Hill, 1961.