Lua APA (7ú heag.)

CHOUDHURY S K HAJRA. (2004). ELEMENTS OF WORKSHOP TECHNOLOGY (13TH.). MEDIA PROMOTORS.

Lua i Stíl Chicago (17ú heag.)

CHOUDHURY S K HAJRA. ELEMENTS OF WORKSHOP TECHNOLOGY. 13TH. MUMBAI: MEDIA PROMOTORS, 2004.

Lua MLA (9ú heag.)

CHOUDHURY S K HAJRA. ELEMENTS OF WORKSHOP TECHNOLOGY. 13TH. MEDIA PROMOTORS, 2004.

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