Colman, S., Holman, B., & Sapphire. (1999). The Nuyorican Poets Cafe: With poetry by Stephen Colman, Bob Holman and Sapphire. Material.
Lua i Stíl Chicago (17ú heag.)Colman, Stephen, Bob Holman, agus Sapphire. "The Nuyorican Poets Cafe: With Poetry by Stephen Colman, Bob Holman and Sapphire." Material 1999.
Lua MLA (8ú heag.)Colman, Stephen, et al. "The Nuyorican Poets Cafe: With Poetry by Stephen Colman, Bob Holman and Sapphire." Material, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.