APA-ийн эшлэл(7 дахь хэвлэлт)

Vajravelu, K., & Prasad, K. V. (2014). Keller-box method and its application. De Gruyter/Higher Education Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Vajravelu, Kuppalapalle, ба Kerehalli V. Prasad. Keller-box Method and Its Application. Berlin ; Boston: De Gruyter/Higher Education Press, 2014.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Vajravelu, Kuppalapalle, ба Kerehalli V. Prasad. Keller-box Method and Its Application. De Gruyter/Higher Education Press, 2014.