Thomas, S. E. (1965). Commerce: Its theory and practice. Cassell and company limited.
Chicago-čujuhus (17. p.)Thomas, S. Evelyn. Commerce: Its Theory and Practice. London: Cassell and company limited, 1965.
MLA-čujuhus (9. p.)Thomas, S. Evelyn. Commerce: Its Theory and Practice. Cassell and company limited, 1965.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.