Ruf, B., Baldessari, J., Gillick, L., & Weiner, L. (2007). Again the Metaphor Problem and Other Engaged Critical Discourses about Art: A Conversation between John Baldessari, Liam Gillick and Lawrence Weiner, moderated by Beatrix Ruf. Springer.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিRuf, Beatrix, John Baldessari, Liam Gillick, এবং Lawrence Weiner. Again the Metaphor Problem and Other Engaged Critical Discourses About Art: A Conversation Between John Baldessari, Liam Gillick and Lawrence Weiner, Moderated by Beatrix Ruf. Wien [u.a.]: Springer, 2007.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিRuf, Beatrix, et al. Again the Metaphor Problem and Other Engaged Critical Discourses About Art: A Conversation Between John Baldessari, Liam Gillick and Lawrence Weiner, Moderated by Beatrix Ruf. Springer, 2007.