If you need to use the. guidelines to cite sources, there are two formats you can use. The author-date format is often used in the physical, natural, and social sciences, while the note-bibliography format is more common in the humanities (literature, history, and the arts).
The BBCOR one-piece bats are made of composite or metal and they are one solid piece from the barrel to the handle. The two-piece bats have separate barrels and handles. The two-piece bats usually have different materials, with a composite handle and a metal or composite barrel.
WHAT WEâRE MADE OF. What are o.b.Â® tampons made of? What are o.b.Â® tampons made of? o.b.Â® tampons are made of two types of rayon and a polyester string. The cover for o.b.Â® ORIGINALâ¢ is made of polyester/polyethylene non-woven material and that of o.b.Â® PRO COMFORTÂ® is made of polyethylene/polypropylene film.