How to define lat/long coordinates for location?

[Markus Neteler]

Hi there!

Today I need to know how to define lat/long coordinates
in southern hemisphere... Could you help me?

The coordinates are
     10 southern latitude  to 60 southern latitude
     100 western longitude to 60 western longitude



This one?

         -10:mm:ssN
 
 -100:mm:ssW       60:mm:ssW
 
         -60:mm:ssN


Or this one?
 
         10:mm:ssS
 
 -100:mm:ssE       -60:mm:ssE
 
         60:mm:ssS


Or this one?

         -10:mm:ssS
 
 -100:mm:ssW       -60:mm:ssW
 
         -60:mm:ssS

 
Help would be very welcome... The programmers tutorial is not
very clear here.

Thanks 

  Markus