The Development of Thought: Equilibration of Cognitive Structures

Domestic Media Mail is $4.85, Priority $7.3. Canadian orders add $8.00. To other locations, global priority $25 for flat rate envelopes. Orders over $45.00 must be insured at buyer's expense, others can be insured if requested and at buyer's expense. Orders usually ship within 2 business days. Shipping costs are based on books weighing 2.2 LB, or 1 KG. If your book order is heavy or oversized, we may contact you to let you know extra shipping is required. Please note that there is no longer an economy surface shipping to overseas locations.