Gently Used "Development of Childrens Thinking" (Carpendale) University textbook

Gently used. I got this for my Psyc 250 class at SFU. The textbook is in great condition. There are some annotations and highlighting in the margins of chapters 1 & 2 but nothing in the rest of the book. This text book was originally $80 when I bought it (I bough it new).