Lua APA (7ú heag.)

Kumar, A. (2022). Challenges to Internal Security (5th ed.). McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

Kumar, Ashok. Challenges to Internal Security. 5th ed. Chennai: McGraw-Hill, 2022.

Lua MLA (9ú heag.)

Kumar, Ashok. Challenges to Internal Security. 5th ed. McGraw-Hill, 2022.

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