Lua APA (7ú heag.)

NANDI D.N. (1991). H.B. ON REFRACTORIES. TATA MC GRAW HILL.

Lua i Stíl Chicago (17ú heag.)

NANDI D.N. H.B. ON REFRACTORIES. TATA MC GRAW HILL, 1991.

Lua MLA (9ú heag.)

NANDI D.N. H.B. ON REFRACTORIES. TATA MC GRAW HILL, 1991.

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