APA-referens

John M Chalackal. (1987). Keralathile sahakarana prasthanam. State institute of languages.

Chicago-stil citat

John M Chalackal. Keralathile Sahakarana Prasthanam. Thiruvananthapuram: State institute of languages, 1987.

MLA-referens

John M Chalackal. Keralathile Sahakarana Prasthanam. State institute of languages, 1987.

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