Genere: Documentario
Stelle: Peter Roberts
equipaggio: Heinz Scheiderbauer (Director), Earle Luby (Writer), Earle Luby (Producer), Heinz Scheiderbauer (Director of Photography), Jack Davis (Editor), Francis Woolley (Sound Recordist)
Nazione: United States of America
linguaggio: English
Studio: RKO Radio Pictures, RKO Pathé Pictures
Durata: 8 minuti
Qualità: HD
Rilasciato: Jan 01, 1957
IMDb: 6
parole:cave, speleology
