Should I join a gym? I wnat to get more muscular and impressive?

iwant to gai like thirty punds of raw muscle m and especcilayt fill otu ym upper body like lats, shoulders and traps, and also my ha,mstrongs glutes, thighs and lower back, i also wnat an impressive chest arms and strong brick hard abs. I fel that jopininga gym will give me way mroe tools to compleyte this than bodyweight exercise alone. I will still work on challenging bodyweight exercises as I grow like one arm pushgups, clap pushups, pull-ups, dips, one legged squats and glute ham raises as well as ab movemnets, but I think I need to squat and do weighted pull-up and dips. As well as deadlift and one amr clean and press and stuff to pack on the msucle and strength. I will use sprints and hitting the bag for cardio. iw ant to get husky though, I need to join a gym huh? Also what is a good book for excellent info, I was thinking Beyond Brawn. I plan to start with a 20 rep squat program with bag work and sprints to stay lean. Do I really need the gym to get big?