Compra aquest llibre
| Venedor | Preu | Puntuació del venedor |
|---|---|---|
| Psychology Press | Sense preu | |
| Amazon.com | Sense preu | |
| Barnes&Noble.com | Sense preu | |
| Books-A-Million | Sense preu | |
| IndieBound | Sense preu | |
| eBay - betterworldbookswest | 14,62 USD | |
| eBay - betterworldbooks | 14,62 USD | |
| Thriftbooks.com | 13,79 USD | |
| World of Books | 43,99 USD | |
| eBay | 40,95 USD | |
| Amazon.com | 15,17 USD | |
| Better World Books | 14,26 USD | |
| SecondSale | 12,54 USD |