If the hub you wish to link to is yours, when you write a hub, one of the options on a text capsule for inserting is a link.
To use this, write some text like "view it here", then select it.
This will then make the link option available which looks like chain links.
Click it and it will produce a list of your hubs. You can select from the list.
Also included is the option to add a URL (e.g. http://hubpages.com/hub/Think-Bike), which you can enter instead. Either type in the URL or use the search functions and off you go.
Once you click OK, the selected text will turn blue and will become a hyperlink to that URL.
Hope this helps.