what does LH / RH mean?

i'm looking at buying a 93' G20. it needs a little work, so i'm looking at parts online to see how much it's going to cost me. all the parts are seperated into "LH" & "RH" . i don't know too much about inifiniti's. can someone help me understand what that means? & how do i know which i need?

this is for the propper application, over seas the "Primera" comes in RH (right hand drive) or over here LH (left hand drive) meaning which side of the cab the steering wheel is on...

Left Hand & Right Hand ...........
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left hand

right hand

Right Hand
Left Hand ?

i'm looking at buying a 93' G20. it needs a little work, so i'm looking at parts online to see how much it's going to cost me. all the parts are seperated into "LH" & "RH" . i don't know too much about inifiniti's. can someone help me understand what that means? & how do i know which i need?

Wodda Toucan