The [Node Hierarchy Module][1] allows this type of relationship, as well as providing a views integration. 

>Node Hierarchy allows nodes to be children of other nodes creating a tree-like hierarchy of content. The module offers:

> - 1-Click creation of hierarchical menus
> - Hierarchical breadcrumbs
> - Automatic hierarchical urls using Pathauto (and token module)

>   (eg: q=aboutus/history/beginning).
> - Automatic creation of hierarchical menus if desired.
> - Optional Views integration.
> - Optional Node Access integration.

  [1]: http://drupal.org/project/nodehierarchy