Ausubel, David P.
| Nume personal | |
| Nume personal | Ausubel, David P. |
| Element de intrare | |
| Autoritate | Ausubel, David P. |
200
0_
$aAusubel, David P.
299 __ $aAusubel, David P.
299 __ $aAusubel, David P.