Ranma ½ (Ed. argentina) is a 16-book series with 16 primary works first released in 1990 with contributions by Rumiko Takahashi.
The Argentine editions of Ranma 1/2 are broken into 50 volumes: the first 24 are the first 12 Japanese volumes split in half, and the rest are the same as the Japanese volumes. (Note that Japanese volumes 19-38 correspond to American volumes 17-36.)
#13 of 38 in らんま½ [Ranma ½]
1990 • 2 Readers • 192 pages • 4
#14 of 38 in らんま½ [Ranma ½]
1991 • 2 Readers • 192 pages • 4
#15 of 38 in らんま½ [Ranma ½]
1991 • 2 Readers • 192 pages • 4
#16 of 38 in らんま½ [Ranma ½]
1991 • 2 Readers • 192 pages • 4
#23 of 38 in らんま½ [Ranma ½]
1992 • 2 Readers • 192 pages • 3
#24 of 38 in らんま½ [Ranma ½]
1993 • 3 Readers • 178 pages • 4
#26 of 38 in らんま½ [Ranma ½]
1993 • 2 Readers • 192 pages
#36 of 38 in らんま½ [Ranma ½]
1996 • 2 Readers • 192 pages
#37 of 38 in らんま½ [Ranma ½]
1996 • 1 Reader • 192 pages
#38 of 38 in らんま½ [Ranma ½]
1996 • 1 Reader • 192 pages