AGARWAL VISHWAS. (1990). STEEL HANDBOOK 1989-90. VISHWAS TECHNO PUBLICATIONS.
Lua i Stíl Chicago (17ú heag.)AGARWAL VISHWAS. STEEL HANDBOOK 1989-90. MUMBAI: VISHWAS TECHNO PUBLICATIONS, 1990.
Lua MLA (9ú heag.)AGARWAL VISHWAS. STEEL HANDBOOK 1989-90. VISHWAS TECHNO PUBLICATIONS, 1990.
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