In the following years Selden made several other books, improving on the initial system.

This initial system was financed by workers and employers.

The initial system used recorded voice messages to advise parents whenever their child could not be accounted for.

In contrast to the big promises, the initial system the companies described is quite modest.

The initial system generated an incremental $46 million in profit.

This led to the initial system, mostly followed in South India.

The initial system is projected to cost approximately US$103 million.

The initial system had a headway of 30 minutes, but this was changed to 20 minutes in 1912.

Of course, the initial system will not be perfect.

This initial system gave casinos a new marketing tool in player management.