Vajravelu, K., & Prasad, K. V. (2014). Keller-box method and its application. De Gruyter/Higher Education Press.
芝加哥风格引文Vajravelu, Kuppalapalle, 与 Kerehalli V. Prasad. Keller-box Method and Its Application. Berlin ; Boston: De Gruyter/Higher Education Press, 2014.
MLA引文Vajravelu, Kuppalapalle, 与 Kerehalli V. Prasad. Keller-box Method and Its Application. De Gruyter/Higher Education Press, 2014.
警告：这些引文格式不一定是100％准确.