FILE= sends the output to the file associated with the fileref LABELS. NDOWN= prints four rows of form units on each page. CC writes carriage control characters to the file specified by FILE=. WIDTH= sets the width of the form units to 24 to provide enough room for the variables on each line. ACROSS= writes two form units across each page. BETWEEN= puts 20 blank characters between adjacent form units. DOWN= skips two lines at the top of each page so that the form units and the forms align correctly. SKIP= skips three lines between form units to maintain the proper alignment. ALIGN= suppresses the printing of dummy form units. SETS= writes two sets of form units. Each set begins on a new page. 
proc forms data=list file=labels
           ndown=4
           cc
           width=24
           across=2
           between=20
           down=2
           skip=3
           align=0
           sets=2;