Do you have books about harmonic frequency?
Go to the WorldCat link below. That is our book catalog. Search harmonic. At the bottom left, select the limiter linkfor Physical Sciences.
There will be books and eBooks. Click on the title link. If it's an eBook, once you are in the record you will see a link that says click here to access.
For print books, you will find availability and the call number.
You can also search our entire eBook collection by going to the EBSCO eBook link below and searching for "harmonic frequency". Use the subject and/or category limiters on the left to restrict to your topic.