(1968). The interaction of sciences in the study of the earth. Progress.
Chicago-čujuhus (17. p.)The Interaction of Sciences in the Study of the Earth. Moscow: Progress, 1968.
MLA-čujuhus (9. p.)The Interaction of Sciences in the Study of the Earth. Progress, 1968.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.