Cruz, A. C. (1960). Signatures: A poetry publication. [s.n.].
Lua i Stíl Chicago (17ú heag.)Cruz, Andres Cristobal. Signatures: A Poetry Publication. Manila: [s.n.], 1960.
Lua MLA (9ú heag.)Cruz, Andres Cristobal. Signatures: A Poetry Publication. [s.n.], 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.