# Connected sum of a torus and a real projective plane

My question is really basic. I was reading on the Massey's Book of algebraic topology on the connected sum of the torus and real projective plane, I felt a little confused his explanation. Someone can explain to me Or at least give a reference where I can find this calculation?

-
Calculation of what? – Chris Eagle Jan 20 '12 at 23:23
Please summarize what Massey did in his book. – HbCwiRoJDp Jan 22 '12 at 13:52