An Anatomy and Physiology textbook.
encyclopedia
Roget's Thesaurus Roget's Thesaurus
Thesaurus
ENCYCLOPEDIA
A telephone book.
almanac
almanac
Wiki Answers, a dictionary, or a thesaurus. (thess OH russ)
To reference a reference within a reference, you would cite the original source you used, followed by "cited in" and then the secondary source where you found the information. Make sure to acknowledge both sources in your references list to maintain academic integrity.
A history textbook.
Wikipedia
dictionary!!!