what are formats of retail?

Retail formats are of different types can be expalined as:

1. Ownership format
a. Single'
b. Multi/chain
c. Frnanchise

2. store formats
a. Convinience
b. Store market
c. Super market
d. Hyper market E.
e. Speciality
f. Departmental store

3. non store formats
a. mail
b. Vending
c. Direct sale
d. Tele marketing
e. Online