Lua APA (7ú heag.)

PURI, S. (1989). FUNDA. OF VIBRATIONS & WAVES. TATA MC GRAW HILL.

Lua i Stíl Chicago (17ú heag.)

PURI, S.P. FUNDA. OF VIBRATIONS & WAVES. TATA MC GRAW HILL, 1989.

Lua MLA (9ú heag.)

PURI, S.P. FUNDA. OF VIBRATIONS & WAVES. TATA MC GRAW HILL, 1989.

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