196809 Calder, N. (1977). The key to the universe: A report on the new physics. London : BBC.
Chicago-čujuhus (17. p.)196809 Calder, Nigel. The Key to the Universe: A Report on the New Physics. London : BBC, 1977.
MLA-čujuhus (9. p.)196809 Calder, Nigel. The Key to the Universe: A Report on the New Physics. London : BBC, 1977.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.