Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000051931-17-001781-index-headers.html | 2017-09-05 13:53:34 | |
| 0000051931-17-001781-index.html | 2017-09-05 13:53:34 | |
| 0000051931-17-001781.txt | 2017-09-05 13:53:34 | |
 0000051931-17-001781-xbrl.zip | 32450 | 2017-09-05 13:53:34 |
| ck0000770161-20170811.xml | 33043 | 2017-09-05 13:53:34 |
| ck0000770161-20170811.xsd | 9297 | 2017-09-05 13:53:34 |
| ck0000770161-20170811_cal.xml | 5053 | 2017-09-05 13:53:34 |
| ck0000770161-20170811_def.xml | 111994 | 2017-09-05 13:53:34 |
| ck0000770161-20170811_lab.xml | 191124 | 2017-09-05 13:53:34 |
| ck0000770161-20170811_pre.xml | 124878 | 2017-09-05 13:53:34 |
| FilingSummary.xml | 3431 | 2017-09-05 13:53:34 |
| gvt497xbrl.htm | 5689 | 2017-09-05 13:53:34 |
| R1.htm | 52189 | 2017-09-05 13:53:34 |
| R2.htm | 44335 | 2017-09-05 13:53:34 |
| R5.htm | 54943 | 2017-09-05 13:53:34 |
| R6.htm | 3933 | 2017-09-05 13:53:34 |
| report.css | 2767 | 2017-09-05 13:53:34 |
| Show.js | 1410 | 2017-09-05 13:53:34 |