From the McCall's website:
Pullover tops. A: Armhole bands. A, B, C: Close-fitting, neck bands. D: Very loose-fitting, reverse construction finish on neckline, front and back cut-in-one, narrow hem, openings for arms and wrong side shows on back hemline. Loose-fitting shorts or straight leg pants have elastic waist. E: Attached tie. A, B, C, E, F: Stitched hems.