Cita APA (7a ed.)

Grillo, P. J. (1960). What is design? Paul Theobald.

Cita Chicago Style (17a ed.)

Grillo, Paul Jacques. What Is Design? Chicago: Paul Theobald, 1960.

Cita MLA (9a ed.)

Grillo, Paul Jacques. What Is Design? Paul Theobald, 1960.