Cita APA (7a ed.)

Spillers, W. R. (1974). Basic questions of design theory. North Holland.

Cita Chicago Style (17a ed.)

Spillers, William R. Basic Questions of Design Theory. Amsterdan: North Holland, 1974.

Cita MLA (8a ed.)

Spillers, William R. Basic Questions of Design Theory. North Holland, 1974.