The Seropositive Ball, Riper, H., Garcia, D., Riemens, P., & Singels, H. (1990). The seropositive ball: An impression of the 69-hour seropositive ball held at Amsterdam's Paradiso in June 1990 / editors: Heleen Riper ; David Garcia ; Patrice Riemens. Photographs: Han Singels ; Michael Tidmus ; Jan Ditvorst.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিThe Seropositive Ball, Heleene Riper, David Garcia, Patrice Riemens, এবং Han Singels. The Seropositive Ball: An Impression of the 69-hour Seropositive Ball Held at Amsterdam's Paradiso in June 1990 / Editors: Heleen Riper ; David Garcia ; Patrice Riemens. Photographs: Han Singels ; Michael Tidmus ; Jan Ditvorst. Amsterdam, 1990.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিThe Seropositive Ball, et al. The Seropositive Ball: An Impression of the 69-hour Seropositive Ball Held at Amsterdam's Paradiso in June 1990 / Editors: Heleen Riper ; David Garcia ; Patrice Riemens. Photographs: Han Singels ; Michael Tidmus ; Jan Ditvorst. 1990.