Kaluza, H. J. (1976). Accounting A Systems Approach Henry J. Kaluza. s.n.
Lua i Stíl Chicago (17ú heag.)Kaluza, Henry J. Accounting A Systems Approach Henry J. Kaluza. s.n, 1976.
Lua MLA (8ú heag.)Kaluza, Henry J. Accounting A Systems Approach Henry J. Kaluza. s.n, 1976.
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