You should have googled more. Anyway, here's my final response.
z = vector of zeros, form: z=[x y z]; In your case make it empty, e.g. z=[];
p=vector of poles, form: p=[x y z];
k=overall system gain, make it=1;
[num,den] = zp2tf(z,p,k)
then transform into transfer function
sys=tf(num, den);