The board may authorize the use of the library by persons not residents of the city in any one or more of the following ways:
A. Lending: By lending the books or other materials of the library to nonresidents on the same terms and conditions as to residents of the city, or upon payment of a special nonresident library fee.
B. Depository: By establishing depositories of library books or other materials to be loaned to nonresidents.
C. Bookmobiles: By establishing bookmobiles or a traveling library so that books or other library materials may be loaned to nonresidents.
D. Branch Library: By establishing branch libraries for lending books or other library materials to nonresidents. (1985 Code §4-1.08)