Darbyshire, L. (1991). Practical graphic design techniques. Tiger Books International.
Cita Chicago (17th ed.)Darbyshire, Lydia. Practical Graphic Design Techniques. London: Tiger Books International, 1991.
Cita MLA (9th ed.)Darbyshire, Lydia. Practical Graphic Design Techniques. Tiger Books International, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.