how do i pull total return for defined timeframe for an equity using bloomberg history function?

I do this all the time in excel. how do I do it in matlab? if some kind soul could provide a code snipped that would be greatly appreciated?

thanks, m

[Matthew]

history(c,'msft equity','cust trr return holding per','3/17/14','3/19/14',[],[],'overrideoption',{'cust trr start dt','20140314';'cust trr end dt','20140317';'cust trr crncy','usd'})

why doesn't the above work? shouldn't it work?