- Open up Wikipedia page in edit view
- Go to bottom, copy names of all templates you wish to copy (include "Template:" in the names)
- Paste all these in the Special:Export box on another page on Wikipedia (open new tab for this)
- Make sure "include templates is checked" (will add subtemplates automatically)
- Save the XML file it spits out somewhere.
- Use Special:Import here to import that XML file of templates here (may time out, so redo it a few times if the file is really large)
- Go to page you need to see template on, purge cache and check to see if it looks right.
- If so, the page will look right, recent changes will report what you imported.
- Celebrate!