If possible, look for reviews written by prominent scientists in their fields. Look at the credentials of the author. Check the credentials of the school where they got their degree, too, by looking it up in a guide such as Barron's or Lovejoy's guides to North American schools. Unfortunately, some pseudoscientists have discovered this, so the presence of citations alone is generally not enough to ensure quality. One must also check that the citations are to mainstream, peer-reviewed journals.
Most university libraries subscribe to the major journals in scientific fields.
If the book refers primarily to journals which are not listed in your university library catalogue, you should be on your guard. Try to find a more recent book. Pseudoscientists are very fond of quoting material out of context. If so, be on your guard. If so, beware.