Tracy, M., Christophel, J., Leffingwell, E., & Carter, K. (1992). The river Pierce: Sacrifice II, 13.4.90 : a document of the collaborative action / by Michael Tracy. Texts by Joan Christophel. Photographs by Keith Carter. The River Pierce Foundation.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTracy, Michael, Joan Christophel, Edward Leffingwell, और Keith Carter. The River Pierce: Sacrifice II, 13.4.90 : A Document of the Collaborative Action / by Michael Tracy. Texts by Joan Christophel. Photographs by Keith Carter. Houston, Tex.: The River Pierce Foundation, 1992.
एमएलए (8वां संस्करण) प्रशस्ति पत्रTracy, Michael, et al. The River Pierce: Sacrifice II, 13.4.90 : A Document of the Collaborative Action / by Michael Tracy. Texts by Joan Christophel. Photographs by Keith Carter. The River Pierce Foundation, 1992.