HIRENSCHALL, H. (1975). EYES ON THE WILDERNESS. HARCOURT.
Chicago Style aipamenaHIRENSCHALL, HELMUT. EYES ON THE WILDERNESS. CANADA: HARCOURT, 1975.
MLA aipamenaHIRENSCHALL, HELMUT. EYES ON THE WILDERNESS. HARCOURT, 1975.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.