O'CONNOR, J. (1956). Science vocabulary builder. Human Engineering laboratory.
Chicago-čujuhus (17. p.)O'CONNOR, Johnson. Science Vocabulary Builder. Boston: Human Engineering laboratory, 1956.
MLA-čujuhus (9. p.)O'CONNOR, Johnson. Science Vocabulary Builder. Human Engineering laboratory, 1956.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.