Bone, M., & Johnson, K. (2009). I miss my pencil: A design exploration. Chronicle.
Cita Chicago (17th ed.)Bone, Martin, i Kara Johnson. I Miss My Pencil: A Design Exploration. San Francisco, Calif: Chronicle, 2009.
Cita MLA (9th ed.)Bone, Martin, i Kara Johnson. I Miss My Pencil: A Design Exploration. Chronicle, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.