Cita APA (7a ed.)

Gill, B., & Lewis, J. (1964). Illustration; aspects and directions. Studio vist.

Cita Chicago Style (17a ed.)

Gill, Bob, y John Lewis. Illustration; Aspects and Directions. London: Studio vist, 1964.

Cita MLA (9a ed.)

Gill, Bob, y John Lewis. Illustration; Aspects and Directions. Studio vist, 1964.