As I have pointed out here:
Projection formula, Bott and Tu
The integral projection formula given in Bott and Tu is incorrect. This is used later in the book, on page 67 to prove that Poincare dual of a closed oriented submanifold in an oriented manifold and the Thom class of the normal bundle of the submanifold can be represented by the same forms. The proof is on page 67 here:
http://www.maths.ed.ac.uk/~aar/papers/botttu.pdf
As was pointed out in the answer by Eric Wofsey, the solution would be for the pullback to be a proper map. This is not available. But, since the proof uses a tubular neighborhood which can "shrink", could we use the shrinkage to find a compact form approximating the pullback with arbitrary accuracy? Or any other way of going around the error in Bott and Tu?