Lua APA (7ú heag.)
Vajravelu, K., & Prasad, K. V. (2014). Keller-box method and its application. De Gruyter/Higher Education Press.
Lua i Stíl Chicago (17ú heag.)
Vajravelu, Kuppalapalle, agus Kerehalli V. Prasad. Keller-box Method and Its Application. Berlin ; Boston: De Gruyter/Higher Education Press, 2014.
Lua MLA (9ú heag.)
Vajravelu, Kuppalapalle, agus Kerehalli V. Prasad. Keller-box Method and Its Application. De Gruyter/Higher Education Press, 2014.
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