| Punct autorizat de acces - Subiect | |
| Subiect sau categorie de subiect | Van Helmont, Jan Baptist (chimie) |
| Element de intrare | |
| Autoritate | Van Helmont, Jan Baptist (chimie) |
250
__
$aVan Helmont, Jan Baptist (chimie)
299 __ $aVan Helmont, Jan Baptist (chimie)
299 __ $aVan Helmont, Jan Baptist (chimie)