Dragon Ball Z. Vol. 23 / story and art by Akira Toriyama ; [English adaptation by Gerard Jones ; translation, Lillian Olsen ; touch-up art & lettering, Wayne Truman].
"In the original Japanese edition, Dragon Ball and Dragon Ball Z are known collectively as the 42-volume series Dragon Ball. The English Dragon Ball Z was originally volumes 17-42 of the Japanese Dragon Ball"--P. facing title page.
Summary
The djinn Boo has awakened and begun his reign of terror, and even Bobbidi question whether he should have released such a monster. With all of the heroes dead, unconscious or pertrified, Vegeta is left to defeat Boo by himself.