(1969). 100 Great scientists. Pocket.
Chicago-čujuhus (17. p.)100 Great Scientists. New York: Pocket, 1969.
MLA-čujuhus (9. p.)100 Great Scientists. Pocket, 1969.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.
(1969). 100 Great scientists. Pocket.
Chicago-čujuhus (17. p.)100 Great Scientists. New York: Pocket, 1969.
MLA-čujuhus (9. p.)100 Great Scientists. Pocket, 1969.