lispdoc - results for fourth

(fourth list)
Function: Return the 4th object in a list or NIL if there is no 4th object.
Example:
(defun method-required-parameters (x) (fourth x))
Mentioned in:
CLtL2 - 15.2. Lists
HyperSpec - Accessor FIRST, SECOND, THIRD, FOURTH, FIFTH, SIXTH, SEVENTH, EIGHTH, NINTH, TENTH
Successful Lisp - closures