APA-čujuhus (7. p.)

(1939). Topological groups / by L. Pontrjagin. Translated from the Russian by Emma Lehmer.

Chicago-čujuhus (17. p.)

Topological Groups / by L. Pontrjagin. Translated from the Russian by Emma Lehmer. 1939.

MLA-čujuhus (9. p.)

Topological Groups / by L. Pontrjagin. Translated from the Russian by Emma Lehmer. 1939.

Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.